May 21

May 21 is the 141st day of the year in the (the 142nd day during s). There are 224 days remaining until the end of the year.

What happened on this day

 * 2001 - The 2001 Worldwide Developers Conference (WWDC 2001) commences at the San Jose McEnery Convention Center in California.
 * 2005 - Apple Yorkdale in Toronto, Canada is the 106th Apple retail store to be opened.
 * 2021 - The 2nd-generation Apple TV 4K, 5th-generation iPad Pro, and Apple M1-based iMacs begin shipping.
 * 2022 - Apple Wuhan in China is the 519th Apple retail store to be opened.