Officially known as C/1680 V1, Kirch’s discovery soon became known as the Great Comet of 1680 and was visible for many weeks, growing to become the brightest object in the night sky and one of the brightest comets of the seventeenth century.
Galileo was sentenced to house arrest where he remained for the final nine years of his life.
Known as the Orloj, the astronomical clock was designed and built by the Imperial clockmaker Mikuláš of Kadaň and Charles University professor Jan Šindel.
The Islamic calendar was dated to start with the first new moon after the Prophet Muhammad and his followers migrated to Medina.
Christopher Columbus used knowledge of a forthcoming lunar eclipse to fool Jamaican natives into providing his stranded crew with provisions.
On the 4th October 1582, Pope Gregory XIII implemented the Gregorian calendar.
28th June 2015
11th November 2022
11th November 2022
9th November 2019
