How long ago did leonardo da vinci die?

Leonardo died at Clos Lucé on 2 May 1519 at the age of 67, possibly of a stroke.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

1. explain aspects of the democratic process as it was developed in ancient athens

2. trace the roots of the americans political process to ancient athens

3. explain the relationship of citizens to the political process