via wiki:

"[It's] a seven-day event that advocates bicycling for transportation."

"Bike Week has been running in the UK since 1923."

"In the United States of America, May is recognized as Bike Month and Bike to Work Week is always either the first or second full week of May."

f***cars is trending on reddit, and with gas prices as they are, walking or biking can be nice alternatives if you live within a distance of wherever you're going - or can be good exercise and recreation