<span>Industrial production was booming in the early 1900's due to the technological advancements in the assembly line, making it easier for products to be made more efficiently.</span>
Lateen sail, astrolabe, magnetic compass, rudder, mapmaking skills (Latitude and Longitude), Caravel (let ships sail INTO the wind); All helped with European Exploration; Islamic scholars saved Greek and Roman texts, zero, medical advances, numbers/algebra
If they were born into it or in they were in a lower class before reincarnation
Christopher Columbus found the new world in the year of 1942. August 3rd 1942