Take a beautiful spring weekend, add brass rats and Tim the Beaver swag, mix in technology talks and outdoor activities, fuse it all together with a lot of socializing, and what do you get? MIT Tech Reunions, which this year drew more than 3,300 alumni, family, and friends to campus. Events got under way when the 50th-reunion Class of 1974 led the traditional procession into Killian Court for the OneMIT Commencement Ceremony. Sporting their signature red jackets, class members embraced the rain to help welcome 3,666 graduates into the community of nearly 149,000 alumni worldwide.

Ray Larson ’49, from the 75th-reunion class, waved to fellow alums who filled Boston Symphony Hall for the 126th Tech Night at Pops. The celebration continued throughout the weekend at events such as an ice cream social, the Recent Grad Bash, class dinners, and the Baker House 75th reunion. At Saturday’s Toast to Tech, alums enjoyed temporary tattoos, a live band, a brass rat photo booth, cotton candy, and more.

The long weekend, May 30–June 2, featured nearly 120 events, ranging from lab tours to ice cream socials to the ever-popular Tech Night at Pops, Technology Day, and Toast to Tech..