The Atacama Cosmology Telescope: delensed power spectra and parameters. Issue 1 (1st January 2021) - Han, Dongwon; Sehgal, Neelima; MacInnis, Amanda; Engelen, Alexander van; Sherwin, Blake D.; Madhavacheril, Mathew S.; Aiola, Simone; Battaglia, Nicholas; Beall, James A.; Becker, Daniel T.; Calabrese, Erminia; Choi, Steve K.; et al.