Ineed to know a fact abour ancient egypt, anceint greece and ancient rome?

Ancient Egypt: When unwrapping a mummy bandages could stretch up to 1.6km

Ancient Greece: Between 40% and 80% of the population of classical Athens were slaves

Ancient Rome: Was eight times more densely populated than modern New York

ok, so basically your gonna start with 350 ok. so there's 60 seconds in a minute so that means you he can go up 10 ft per minute. soo, after 3 minutes he should be at 260 ft after three minutes : )