On this day, July 21st...

-The first major battle of the American Civil War, The Battle of Bull Run, in Manassas, Virginia took place in 1861.
-Wild Bill Hickock shoots David Tutt in the first western showdown in 1863.
-Jesse and the James-Younger Gang pull off the first successful train robbery in the Old West in 1865.
-Willis Carrier creates the first air conditioner in 1902.
-Louis Rigolly becomes the first man to break the 100 mph barrier in 1904.
-Sir Malcolm Campbell breaks the 150 mph barrier in 1925.
-Elijah Green becomes the first African-American to play for the Boston Red Sox, the last team to integrate, in 1959.
-Neil Armstrong and Edwin Aldrin become the first to walk on the moon in 1969 (July 20 in North America).
-The world's lowest temperature in an inhabited location is recorded at Vostok Station, Antarctica in 1983 (-128.6 degrees Fahrenheit).
-Harry Potter and the Deathly Hallows is published in 2007. It sells 15 million copies within a day of its release.
-NASA's space shuttle program concludes with the landing of Atlantis in 2011.

On this day, July 22nd...

-Alexander McKenzie reaches the Pacific Ocean in the first successful transcontinental crossing of Canada in 1793.
-The first motor race is held between Paris and Rouen in 1894. The winner was Albert Lemaitre.
-Wiley Post becomes the first person to fly solo around the world, flying 15,596 miles in seven days, 18 hours and 45 minutes in 1933.
-John Dillinger, "Public Enemy No. 1", is mortally wounded by FBI agents outside of Chicago's Biograph Theatre in 1934.
-The second Blue Water Bridge opens between Port Huron, Michigan and Sarnia, Ontario in 1997.

Don't we already have lists like this over on the quiz site? They come up in The Buzz.

On this day, July 23rd...

-William Austin Burt patents the typographer, a precursor to the typewriter, in 1829.
-The Province of Canada is created by the Act of Union in 1840.
-The Ford Motor Company sells its first car in 1903.
-In Bombay, the first station of the Indian Broadcasting Company goes on the air in 1927.
-Telstar relay the first publicly transmitted, live trans-Atlantic television program, featuring Walter Cronkite, in 1962.
-Comet Halle-Bopp is discovered in 1995. It becomes visible to the naked eye on Earth. about a year later.

I am afraid I agree with Flopsy These sorts of posts are not really about the world around us which would ask you to post pieces of information that the member has found , not cut and pasted from the likes of Google.

I do not cut and paste from other websites and am not one to plagiarize. I understand that this material might not be the best suit for this forum, since another one of these is already in effect. I apologize for any hurt feelings that may have been felt.