1863 – The Battle of Gettysburg begins
http://www.history.com/this-day-in-history/the-battle-of-gettysburg-begins
1916 – Dwight D. Eisenhower marries “his Mamie”
http://www.history.com/this-day-in-history/dwight-d-eisenhower-marries-his-mamie
1951 – Feller hurls third no-hitter
http://www.history.com/this-day-in-history/feller-hurls-third-no-hitter
1979 – The first Sony Walkman goes on sale
http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale
1984 – PG-13 rating debuts
http://www.history.com/this-day-in-history/pg-13-rating-debuts
1997 – Hong Kong returned to China
http://www.history.com/this-day-in-history/hong-kong-returned-to-china
2005 – Last Ford Thunderbird produced
http://www.history.com/this-day-in-history/last-ford-thunderbird-produced
