The renaissance gathered steam in florence due in part to the influence of lorenzo de' medici, who was

Lorenzo de’ Medici (1449-1492) was an Italian politician who, in effect, though not in title, ruled the Florentine Republic during part of the Italian Renaissance. He was extremely interested in the arts and supported (was a patron of) many Italian Renaissance artists including Michelangelo and Botticelli.

Gouges, because, like there named, they gage the amount of space an object has to move around.hope this : )