Art historians believe that vermeer used tools, such as the to aid in his virtuoso depiction of light.

For this question the answer is Camera obscura

c.it was a major banking and commerce center.

d.leonardo da vinci

d. to fix corruption and problems in the catholic church

d. to reform the catholic church from within

a. human faces are presented in an idealized, spiritual manner.

i feel as if they would both catch on before to long because they would see them to frequent