Monday, Sept. 17
Jewish people celebrate Rosh Hashanah today (and tomorrow).
On this day in 1862 was the Civil War's Battle of Antietam, the bloodiest one-day battle in American history.
The new NBC show "Revolution" premieres tonight.
Occupy Wall Street turns one. The protest against economic equality, which began on Sept. 17, 2011, in Manhattan's Zuccotti Park, quickly caught fire and led to "Occupy"-themed protests across the country - and in other countries.
Happy Constitution Day! Every September 17, since 1787, Constitution Day has commemorated the signing of the U.S. Constitution.
Watch this classic "School House Rock" video explain the preamble:
Think fast: Do you know which Constitutional amendment allows Occupy Wall Street and other peaceable assemblies to go on?
Tuesday, Sept. 18
The 67th United Nations General Assembly opens today.
On this day in 1793, George Washington laid the first cornerstone to the United States Capitol building in Washington, D.C.
Fun facts: The building took almost 100 years to complete - several architects came and went, the British set fire to it and it was called into use during the Civil War - but now it's one of the most visited buildings in the United States, seeing around three million visitors each year.
And today is the start of the two-day trip for Space Shuttle Endeavor to its new home in California. Today it'll fly over various areas of the "Space Coast," including the Kennedy Space Center Visitor Complex and Cape Canaveral Air Force Station, and stop overnight in Texas. Tomorrow it'll be ferried to California. Watch Twitter for sightings: #spottheshuttle.
Wednesday, Sept. 19
What kind of sweaters do pirates wear? Aargh-yle. Today is International Talk Like a Pirate Day, which is exactly what it sounds like. Bad pirate puns are welcome, too.
Thursday, Sept. 20
On this day in 1973, a highly-publicized tennis match - dubbed the "Battle of the Sexes" - was played between Billie Jean King and Bobby Riggs. Riggs, known for his chauvinistic views towards women, had boasted before the match that King - and women in general - were inferior. King ended up beating him, 6-4, 6-3, 6-3, in what became known as a historic victory for women's rights.
Friday, Sept. 21
It's the International Day of Peace.
Today is the premiere of "End of Watch," starring Jake Gyllenhaal. The movie follows two young LAPD officers who confiscate a small amount of money and guns from a notorious drug cartel during a routine traffic stop -- and become the targets themselves.
Watch the trailer:
"Trouble With the Curve," Clint Eastwood's latest movie also comes out today. It's about an old baseball recruiter taking his daughter along for his final recruit. Will he end up recruiting a chair? Guess we'll have to wait and see.
Watch the trailer:
Saturday, Sept. 22
Today is the September equinox. Happy fall!
The Social Good Summit in New York starts on Saturday and goes through Monday. The three-day conference, sponsored by the United Nations, the Bill and Melinda Gates Foundation and Mashable, will feature big ideas about the intersection of technology and social good:
Sunday, Sept. 23
The Primetime Emmy Awards show, hosted by Jimmy Kimmel, airs at 7 p.m. EST.
The following countries are celebrating these holidays today:
- Armenia - Independence Day
- Saudi Arabia - National Day
- Puerto Rico - Grito de Lares
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