What day did lewis and clark leave fort mandan. i know it's between february and march of 1805 but i need to know the exact date.

What makes ijsselmeer different from other landforms in western europe?

The internal combustion engine was an innovation of

What role did mazzini play in italian unification? a.) he dreamed of a united italy and took the first steps to achieving it. b.) he conquered the southern part of italy, including sicily. c.) he was the first leader of a united italy. d.) he was assassinated by the french government, making him a martyr.