From ValerieH137 https://twitter.com/ValerieH137 on Twitter: #OnThisDay 26 years ago: @Fermilab's Proton Pagoda. You can learn more about this structure, which opened in 1976, here: https://history.fnal.gov/proton.html https://twitter.com/ValerieH137/status/1130509510832009216/photo/1 https://chirp.cooleysekula.net/attachment/57911