A Look Back: May 28

50 Years Ago

■For the next month, some 40 workers and students from the University of Massachusetts will be manning boats in the Connecticut River 24 hours a day to listen for radio broadcasts from fish. They will be listening for various numbers of beeps coming from transistorized “sonic tags” which will be placed in the stomach of 50 shad. The tests are to learn as much as possible about the shads’ journey up the Connecticut.

■Area stamp collectors — Green Stamp collectors, that is — are going to have to travel a little farther to redeem their stamps after this week. The Northampton S & H Redemption Center, located at Hamp Plaza on North King Street, is closing its doors June 1.

25 Years Ago

■Dismissed at midday Wednesday after a second recent bomb scare, many students at Northampton High School say they are frustrated with the disruptions they bring. “I think it’s terrible we have this many bomb threats. It’s a waste of time. We just want to graduate,” said senior Caleb Damon.

■The Adult Life Enrichment Center, Massachusetts’ first adult day care program when it opened in 1975, will close its doors July 2 at the Center for Extended Care at Amherst. “It was hard for me to dismantle a program that my mother started,” said Steven Kravetz, treasurer for the Center for Extended Care. Bettie Kravetz founded the adult care program.

10 Years Ago

■The 40 Main St. building in Easthampton known as the Old Town Hall may not hold municipal offices anymore, but city officials say it is still an important community space and is due for upgrades. A $133,000 state grant will make upgrades to the building’s interior possible later this year, said Burns Maxey, coordinator of Easthampton City Arts+.

■After 10 years at the helm of the Greater Easthampton Chamber of Commerce, Eric Snyder said he was looking for new challenges — so he stepped down from his post as executive director last Friday. “It was an amicable parting,” Snyder said. He was the chamber’s first executive director.