News Life Here are 5 record-breaking science discoveries from 2022 This human skeleton (shown from the waist down) from the island of Borneo bears evidence that the lower left leg was amputated roughly 31,000 years ago. T.R. MALONEY ET AL/NATURE 2022 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Erin Wayman December 21, 2022 at 9:00 am New scientific records are set every year, and 2022 was no exception. A bacterial behemoth, a shockingly speedy supercomputer and a close-by black hole are among the most notable superlatives of the year. Earliest surgery The first known surgical operation was a leg amputation (SN: 10/8/22 & 10/22/22, p.