Today in history June 10

1829
Oxford University Rowing Club beat Cambridge University Rowing Club in their first rowing match on the River Thames in London.
1871
In retaliation for the General Samun incident, the U.S. expeditionary fleet landed and occupied several Joseon forts on Ganghwa Island.
1940
Italian Prime Minister Benito Mussolini declares that the Kingdom of Italy officially declares war on Britain and France and begins the invasion of France.
1942
In retaliation for the murder of Reinhard Heydrich by the Czechoslovak underground, the Nazi German SS massacres the villagers of Lidice.
1944
The 2nd Division of the Nazi German SS massacred the villagers of Oradour-sur-Glane in France (pictured), killing 642 people.