28. One cause of ww1 is the assassination of the archduke Fran Ferdinand.
The second cause is Austria-Hungary threatens war on Serbia
29. Trench warfare
30. Germany has to pay 33billon in reparations
Germany has to take full responsibility for the war
The first astronomer to state the fundamental laws of planetary motion, Kelper was also known for his works in geometry, optics and philosophy.
In ancient Rome, the wealthy noble citizens were known as the Patricians, while the lower class citizens were call the plebians. The plebians had far less social impact than the Patricians.