Which one of these is a cause for Renaissance

It was a system according to which the medical European Society was organised on the basis of land tenure.

It had a graded organisation in which there was hardly any chance for social mobility and progress.

Where was the first printing press set up

Who contemplated the use of horseless carriages and flying machines.

Who discovered America? When?

Who painted Mona Lisa

He was an English poet, playwright and actor, who is widely regarded as the greatest writer in the English Language and the world's pr-eminent dramatist.

Name the above mathematician and Astronomer, who formulated a model of the universe that placed the sun rather than the earth at the centre of the universe.