What's the oldest manga or comic is this website? Release date wise not upload.

.....Anything Tezuka Osamu. He is the mastermind behind Lost World(1948) and later with Astro Boy(1963). https://www.mangago.me/read-manga/lost_world/ .....Now for YAOI, Kaze to Ki no Uta(1976) was first for serialisation, not sure why mgg has 2000 on it, but its wrong. https://www.mangago.me/read-manga/kaze_to_ki_no_uta/ .....Then there is Zetsuai......   reply