“18th October 1867: The Alaska Purchase completed with the formal transfer from Russia to the United States” from HistoryPod.net by HistoryPod.net.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
28th June 2015
11th November 2022
11th November 2022
9th November 2019