<em><u>In the 3rd Century BC, Archimedes: invented</u></em><em><u> </u></em><em><u>the sciences of mechanics and hydrostatics.discovered the laws of levers and pulleys, which allow us to move heavy objects using small forces. invented one of the most fundamental concepts of physics – the center of gravity.</u></em>
I believe the Zimmerman Telegram. America received a coded message from Mexico, which wasn't so nice.
Reconstruction came to an end as there were too many southreners opposing of the reconstruction
Answer:
Leif Eriksson
Explanation: Half a millennium before Columbus “discovered” America.