What improvements enabled greater navigational reach in sailing technology?

mapmaking. cartography had been an art form for many years, but it wasn’t until the renaissance when ptolemy’s ancient system of latitude and longitude was rediscovered that mapmakers were able to make surprisingly accurate and useful maps.

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 : )

d.prevent the spread of communism outside of eastern europe.