The Crimean War began in October 1853, having been triggered by disagreements between Russia and the Ottoman Empire regarding Russia’s right to protect the Orthodox Christian minority in the Ottoman-controlled Holy Land. Against a background of declining Ottoman power, Britain and France later joined the war to stop Russia gaining dominance around the Black Sea.

Having raged for two and a half years, with fighting mostly taking place around the Crimean Peninsula, the “notoriously incompetent international butchery” ended when Russia accepted preliminary peace terms after Austria mobilised with the opposing forces. The subsequent peace conference in Paris featured Russia on one side of the table and the alliance of Britain, France, the Ottoman Empire, and Sardinia-Piedmont on the other.

The treaty guaranteed the independence and territorial integrity of the Ottoman Empire, and sought to achieve that with the ‘neutralisation’ of the Black Sea. This denied military access to the waters and also restricted Russia and Turkey from building military fortifications on the coast. Furthermore, the Treaty of Paris restored the territory that each nation controlled to that which had existed before the war, while Russia was forced to abandon its attempts to protect the Ottoman Empire’s Christian subjects.

In reality the treaty only returned temporary stability to Europe. The Ottoman Empire failed to reform and so continued to crumble as nationalist sentiment grew. The larger ‘Eastern Question’ itself remained unsettled and, in 1877, Russia and the Ottoman Empire again went to war.

On the 13th March 1881, Tsar Alexander II of Russia was assassinated in a St Petersburg street by a member of the People’s Will revolutionary movement. Despite introducing a number of reforms such as the 1861 emancipation of the serfs and the abolition of capital punishment, Alexander’s government remained autocratic and after an assassination attempt in 1866 began to brutally repress those who sought political change.

Despite this, by the 1870s the government was coming under increasing pressure from liberals and radicals to introduce further reforms. Land and Liberty, a group of reformers who sought land reform, soon gave rise to the People’s Will which favoured terrorism as a way to achieve their aims. The Tsar became the focus for a number of attacks from 1879 onwards, but finally succumbed on the 13th March 1881.

Alexander was travelling close to the Catherine Canal when a bomb was thrown at his closed carriage by a member of the People’s Will. The blast killed one of the accompanying Cossacks and injured many others, but the Tsar was unharmed. Emerging shaken from his armoured carriage, however, another assassin threw his bomb which landed at Alexander’s feet.

Suffering from severe bleeding, the Tsar was taken to the Winter Palace where he died from his wounds. Somewhat ironically, Alexander had just that morning signed the Loris-Melikov constitution which would have established an elected parliament known as a Duma. However, this was rejected by his son and heir, Alexander III who instead further suppressed civil liberties through the Okhrana. Alexander II’s death therefore arguably slowed down, rather than sped up, the move to a parliamentary democracy.

On the 3rd March 1918 the Treaty of Brest-Litovsk was signed between Russia and the Central Powers. The treaty ended Russia’s participation in the First World War and was negotiated by the new Bolshevik government.

By the winter of 1917 the Russian economy was in tatters as a result of the strain of maintaining the war effort. Tsar Nicholas II had abdicated in February, but the subsequent Provisional Government was overthrown in the Bolshevik Revolution later that year after they continued to fight alongside the Entente Powers.

The Russian Bolsheviks vehemently opposed the war and received some support from Germany in their efforts to seize power. For example they had allowed Vladimir Lenin to return from exile in Switzerland to lead the revolution against the Provisional Government.

After seizing power Lenin appointed Leon Trotsky as Commissar of Foreign Affairs, but peace negotiations with the Central Powers were fraught with difficulties: the situation was so bad that, in mid-February, Trotsky declared ‘neither war nor peace’. He intended Russia to stop fighting, but not sign a peace treaty: this incensed the Germans who responded by restarting their advance into Russia in Operation Faustschlag. Concerned by the speed of the German attack, Lenin threatened to resign if Russia didn’t accept the new peace terms delivered on the 23rd February.

The Treaty was a humiliation for Russia: she lost approximately one million square miles of land including fertile farmland, natural resources and industry, as well as approximately a third of the entire Russian population. The Treaty was cancelled as part of the Armistice with Germany on the 11th November 1918.

Port Arthur was a fortified naval base in the south of Manchuria that had been leased to Russia since 1898. After crushing the Boxer Rebellion as part of an eight-nation coalition, Russia infuriated Japan, which claimed parts of Manchuria within its own sphere of influence, by refusing to remove its troops. Japan was willing to recognise Russian dominance in Manchuria in return for access to Korea, but an agreement could not be reached and Japan broke off diplomatic relations on 6 February 1904.

Three hours before the Russian government received the declaration of war on 8 February, the Japanese Imperial Navy conducted a pre-emptive strike. Japanese Admiral Tōgō sent ten destroyers to Port Arthur where their torpedoes damaged two of the Russian fleet’s most powerful battleships as well as a cruiser. Although none of the ships were sunk due to the effectiveness of torpedo nets in the port, the Russian fleet was seriously weakened as the ships that had been hit were put out of action. The attack was halted at around 2am the following morning after the Russians turned on their searchlights and began to return fire.

At around 8am Admiral Tōgō sent a reconnaissance mission through the morning mist to inspect Port Arthur. With his observers reporting that the Russian fleet had been crippled by the previous night’s attack, the Japanese fleet were ordered to launch an attack on the port. In reality the reconnaissance was wrong and the Russians were prepared for battle. The Battle of Port Arthur resulted in ships on both sides suffering damage before the Japanese fleet retreated.

On the 22nd January 1905, the Bloody Sunday massacre took place in the Russian capital Saint Petersburg. Soldiers of the Imperial Guard fired on protesters led by the Orthodox Priest Father Georgy Gapon as they marched towards the Winter Palace where they planned to present a petition to Tsar Nicholas II.

By 1905 there was growing discontent amongst the urban working class. Father Gapon had established the “Assembly of the Russian Factory and Mill Workers of the City of St. Petersburg” to promote workers’ rights in 1903, but after four Assembly members from the Putilov ironworks were sacked from their jobs in December 1904, workers across the city went on strike. Capitalising on the situation Father Gapon drafted a petition to the Tsar calling for improved working conditions and various other reforms that received 150,000 signatures.

On the morning of the 22nd January workers marched with the petition to the Winter Palace, alongside religious icons and pictures of the Tsar. Gapon had already notified the authorities of the petition and the march, and in response approximately 10,000 troops from the Imperial Guard were placed around the palace. However, why they began firing on the peaceful march is unclear. Even the number killed or injured is uncertain with estimates ranging from the government’s official figure of 96 dead to revolutionary claims of more than 4,000.

The Tsar was not in the palace at the time, and did not give an order for the troops to fire, but was widely blamed for the massacre. In response strikes and protests spread around the country, and eventually developed into the 1905 Revolution.

On the 7th November 1917, Red Guards entered the Winter Palace in St Petersburg in a defining event of the Bolshevik Revolution. Sometimes referred to as the October Revolution, the 7th November is the date from the modern Gregorian calendar that aligns with the 25th October on the old style Julian calendar, from which the revolution got its alternative name.

On the night of the 6th November Leon Trotsky led the Red Guards to take control of key government buildings and communication points such as post offices, bridges and the State Bank. Although the Red Guards were armed, historians generally accept that the takeover was carried out without bloodshed or indeed any shots being fired.

Throughout the 7th November large crowds of troops sympathetic to the Bolsheviks began to surround the Winter Palace. The actual attack on the palace began after a signal shot fired from cruiser ship Aurora. Soviet accounts of the night, portrayed most powerfully in Sergei Eisenstein’s film reenactment, present the takeover of the Winter Palace as a huge battle. However, this popular image is a fabrication. The large number of Red Guards marching towards the palace led to the Cossacks guarding the palace to desert their posts, while the remaining Cadets and volunteers from the Women’s Battalion laid down their weapons and surrendered after the Red Guards found their way inside the palace through an open door.

The remnants of the Provisional Government were discovered in a small dining room and arrested. Meanwhile the wine cellar was looted, leading to what historian Orlando Figes suggested was perhaps, “the biggest hangover in history”.

On the 3rd November 1957, Laika the dog became the first animal to enter orbit around the Earth when she was launched into space on board the Soviet spacecraft Sputnik 2. Laika was never intended to return as the technology to re-enter the Earth’s atmosphere had not yet been developed. However, the launch of a canine into space was seen by the Russian scientists as a precursor to human spaceflight in order to determine the effect of launch and prolonged weightlessness on a living passenger. Laika survived the launch, but died due to overheating as a result of a malfunction in the temperature control system.

Laika was a stray dog who was found on the streets of Moscow. Strays from Moscow were specifically chosen on the assumption that they had already learned how to deal with extreme temperatures and prolonged periods without food. However, Laika and two other dogs still had to undergo extension training ahead of the mission. This included long periods of time in cramped conditions, extreme G-forces on centrifuges, and exposure to loud noises to simulate the conditions of spaceflight.

Throughout the mission, scientists on the ground monitored data coming from sensors attached to Laika. The readings indicated significant stress, but she survived the launch and made four circuits of the Earth before dying of overheating. The exact cause of her death was only confirmed in 2002.

Laika’s death raised ethical questions about the use of animals in scientific research since the spacecraft was not designed to be retrievable. She was, therefore, knowingly sent a mission from which she would not return.

A series of three wars in less than a decade had seen the creation of a unified Germany directed by the Realpolitik of Chancellor Otto von Bismarck. Keen to consolidate the newly-united country, he turned to diplomacy in an attempt to ensure the status quo in Europe.

Despite forming the Dreikaiserbund with Austria-Hungary and Russia in 1873, a power struggle over territory in the Balkans from 1875-78 led to Bismarck playing the role of ‘the honest broker’ at the Congress of Berlin to resolve tensions between his allies. The congress was a diplomatic defeat for Russia and left the Dreikaiserbund in tatters, leading Bismarck to negotiate the new Dual Alliance with Austria-Hungary.

Although specific details of the Dual Alliance were kept secret until 1888, it was a defensive alliance in which both countries agreed to assist each other if they were attacked by Russia. Bismarck and Austria-Hungary’s Secretary of State, Count Julius Andrássy, also agreed to remain neutral in the case of an attack from another country in what is known as benevolent neutrality.

The announcement of the alliance surprised some observers, who noted the threat that the burgeoning German nationalism posed to the Habsburg Empire. The Austro-Prussian War had only been fought between the two countries thirteen years earlier, but the relatively generous peace terms that had been agreed in its wake left the door open to future cooperation. This, combined with Germany and Austria’s shared linguistic and cultural connections, ensured the Dual Alliance lasted until the end of the First World War.

On 23rd August 1939, Vyacheslav Molotov and Joachim von Ribbentrop – the Soviet foreign minister and the German foreign minister – signed the Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics, otherwise known as the Nazi-Soviet Pact. Outwardly it was a guarantee that neither side would fight against the other in war, but a ‘secret protocol’ also outlined how Eastern Europe would be divided between the two countries. This agreement cleared the way for the Nazi invasion of Poland just nine days later.

Stalin’s Communist USSR distrusted Hitler’s Nazi Germany, knowing that ultimately Hitler intended to invade and annex Russia. Similarly, Britain distrusted Stalin due a fear of Communism. Although talks took place between Britain and Russia in early August 1939 regarding a possible alliance against Hitler, they were never taken seriously by the British government who sent their representative by a slow boat and gave him no authority to actually make any decisions.

Frustrated, Stalin’s government received Ribbentrop later that month. He proposed the Nazi-Soviet agreement which, in the face of continued British reluctance to form an alliance, was accepted. The Soviet government almost certainly knew that Hitler would break the non-aggression pact at some point and would invade Russia, but at least the pact delayed that and gave time to prepare.

The Nazi-Soviet Pact was broken less than two years after it was signed, when Nazi forces invaded the Soviet Union in Operation Barbarossa on the 22nd June 1941. All the territory gained by Russia under terms of the ‘secret protocol’ was lost in just a matter of weeks.

On the 19th August 1991 Mikhail Gorbachev, the President of the Soviet Union, was placed under house arrest in what is known as the August Coup. Opposed to Gorbachev’s reforms, the leaders of the coup believed that the new Union of Sovereign States, which had been approved in a union-wide referendum, threatened the complete disintegration of the USSR. A number of individual states had already declared their independence, but the New Union Treaty would devolve much of the Soviet Union’s remaining power to individual states.

It was while Gorbachev was on holiday in Foros, a resort in the Crimea, that the coup was launched. On the 17th August, the coup’s leaders met with Gorbachev and demanded that he either declare a state of emergency or resign. Although the specific details of the conversation are unclear, the outcome was that Gorbachev refused.

Gorbachev was placed under house arrest, and the leaders of the coup – known as the Gang of Eight – created the State Committee of the State of Emergency to govern the USSR due to Gorbachev suffering from an “illness”. The changes in government were announced on state media on the morning of the 19th but, having chosen not to arrest Russian President Boris Yeltsin, the coup faced a blow when he began speaking against it. Two days later, the military supporting the coup failed to take control of the Russian parliament building in the face of civil resistance.

The coup collapsed on the 21st August, but the USSR was left seriously weakened. Just over four months later the Soviet Union was officially dissolved.