Repbulic and Democracy in 500BC

In the last decade of the 500s BC, two new governmental ideas arose—one on the Italian peninsula and one on the Attica peninsula near the Aegean Sea. Discuss the rise and development of these political ideas: Republic and Democracy. 

Explain the critical steps that it took in both locations to achieve what was created, and clearly show the basic governmental structures that both developed (how did they govern? What offices were in place?).  Finally, make an assessment on which, if either, would be a better form of government in today’s world.