On Sept. 11, 1972, the very first passenger embarked on the very first BART line, which ran between MacArthur and Fremont stations.

Since that fateful day, millions of people have turned to the Bay Area Rapid Transit System to get them to work, home or the next Giants game.

(SCROLL DOWN FOR PHOTOS)

This September marks 40 years of service for BART , a huge milestone for the entire agency, its employees, and of course, its passengers.

In honor of the big 4-0, BART is exhibiting various memorabilia and photos from the last four decades throughout its stations.

The transit agency is also asking its riders to help them bring together 40 years of memories. Add your own photos via Flickr or Pinterst, or email bart40th@bart.gov

More information regarding special promotions and events for the anniversary year will be announced by BART in the next couple of weeks.

Scroll through the slideshow below to see some cool vintage photos of BART:

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  • BART train operator

  • BART train on a truck

  • BART passengers

  • "Home to the Suburbs"

  • Mustaches of the time

  • Artist's rendering

  • Fashions of the times

  • Scale model

  • President Nixon on BART

  • Lake Merritt construction

  • Lion greets passengers

  • LBJ and Gov. Pat Brown

  • Humphrey-Go-BART

  • A BART cake

  • A cake for BART's 21st birthday

  • BART train in tunnel

  • Artist's rendering of Lake Merritt Station/Operations Control Center

  • 1970s BART employee

  • Early BART postcard

  • Imaginative artwork of Transbay Tube

  • 1970s BART employees

  • BART's first passenger

  • Promotions for start of Saturday service, featuring local icons

  • 1970s BART empployees

  • Early BART map

  • BART's 40th Anniversary Poster