September 23rd is also known as Celebrate Bisexuality Day and Restless Legs Awareness Day.
A mud volcano near Baku in Azerbaijan erupted.
The Japanese Space Agency sent two robots to explore an asteroid aboard their Hayabusa-2 spacecraft.
A study was published by the journal Nature saying that scientists had identified four distinct types of breast cancer.
Iran blocked access to Google and Gmail due to an anti-Islam movie that triggered protests worldwide.
The American sitcom 'Modern Family' premiered on ABC.
After three years in development, Bungie finally released Halo 3 for the Xbox 360.
Version 0.1 of the standalone open-source Mozilla Firefox web browser was released.
The American Drama movie 'The Shawshank Redemption' by Frank Darabont was released in the US.
Anti-nuclear protests in New York City, 200,000 showed up, including Jane Fonda.
The Lincoln Center for the Performing Arts opened in New York City.
Johannes Ostermeier patented the flashbulb for cameras.
Fusajiro Yamauchi founded Nintendo in Japan.
Inventor Richard Rhodes received the patent for a hearing aid.
British Major John André was captured and searched by three Westchester militiamen near Tarrytown, New York, USA.
