June 7th:
1712 – Philadelphia bans the import of slaves.
1981 – the Israeli Air Force destroys Iraq’s Osiraq nuclear reactor.
1977 – 500 million people watch on television as the high day of Jubilee gets underway for Queen Elizabeth II.
1917:
World War I: Allied ammonal mines underneath German trenches in Mesen Ridge are detonated, killing 10,000 German troops.
1914 – The first vessel passes through the locks of the Panama Canal.
1494 – Spain and Portugal sign the Treaty of Tordesillas which divides the New World between the two countries.