1775 – George Washington takes command of the Continental Army at Cambridge, Massachusetts.
1819 – The Bank for Savings in the City of New-York, the first savings bank in the United States, opens.
1863 – The final day of the Battle of Gettysburg culminates with Pickett’s Charge.
1890 – Idaho is admitted as the 43rd state.
1979 – President Jimmy Carter signs the first directive for secret aid to the opponents of the pro-Soviet regime in Kabul.
2009 – Sarah Palin announced she was resigning as governor of Alaska with 17 months to go in her term.