May Day falls on May 1, so if you're looking for a way to celebrate, head over to Piper Park today for some sun and fun.
If you're looking for a really big celebration this week, try the 20th annual Marin Open Studios this weekend.
The first of May also is a day when many celebrate workers and push for immigration reform.
Historically, the day is a celebration of spring for many cultures throughout Europe and the former Soviet Union. The earliest May Day festivities appeared in pre-Christian times. Customary British celebrations—where much of the lore about May Day comes from—include dancing around a Maypole, crowning a May Queen and revelry.
There are few May Day traditions in the United States, though anonymously gifting "May baskets"—small baskets of treats and/or flowers—to your neighbors is was a popular May Day act. It fell out of favor during the Cold War due to its Communist associations (keep reading).
May Day also a celebration of the international labor movement. It's a major holiday for workers in much of Central and South America, as well as Russia, though it's not official recognized in the United States. (Our Labor Day comes in September, and is usually synonymous with camping trips, sales and the start of the school year).
Still, unions and union locals in the US often have unofficial observances on May 1. The day commemorates a public assembly during a general strike for the eight-hour workday in Chicago in 1886, when an unidentified person threw a bomb at demonstrators and police opened fire, killing four people.
In recent years, May 1 has also become an iconic day for the immigration movement in the US.
Last year, high school students in Menlo Park skipped school to join a May Day rally. In Marin County, the day was marked by strikers shutting down ferry service in Larkspur and Sausalito, as well as nurses striking in Novato Community Hospital and a demonstration in San Rafael.
A May Day march for immigrants' and workers' rights through downtown Santa Cruz in 2010 morphed into a riot, damaging local businesses.