Why did Diocletian reorganize the Roman Empire into a tetrarchy?

In one to two paragraphs, compare and contrast the american, french, and mexican revolution.

The victory of andrew jackson in the presidential elections of 1828 was aided by (1) the support of eastern bankers (2) implementing woman's suffrage (3) reducing property qualification for voting (4) the endorsement of northern abolitionists

What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role