What is francis bacon known for?
a. developing a mathematical coordinate system
b. stressing the importance of repeated observations and experiments
c. improving the telescope, thermometer, and compass
d. introducing the theory of universal gravitation

where are the answers

explanation:

be cause we need them

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation: