mikejuk (1801200) writes "Gottfried Leibniz, the German mathematician who developed the modern forms of differential and integral calculus was born in Leipzig on July 1, 1646. However he also deserves recognition for his contribution to computer technology." Link to Original Source
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.