Alexander III of Macedon, also popularly known as Alexander the Great, was a follower of the Greek<span> polytheistic religion, also called, Hellenism. They worshiped a hierarchy of deities, with Zeus being the king of the gods.</span><span />
I think the word you're looking for is "hypothesis".
For example, a hypothesis could be "dogs drink more often when owners are present".
And then this can be proven (or dis-proven) by an observation (or in this case rather: measurement).
Answer:
1. Germany invades poland Sept. 25th 1941
2. France falls to German forces June 22nd 1940
3. Battle of britain. Jul, 10th 1940
4. Japan bombs pearl harbor nov, 25th 1941
