Usually, my posts on birthdays involve musicians. Today, let's raise our cups to celebrate Gottfried Wilhelm Leibnitz, born on this day in 1646 in Leipzig.
Leibniz laid the foundations of both integral and differential calculus.
His memory is being kept alive by every high school and college student having to learn the principles and method of The calculus. Groan! Until they are introduced to calculators that have the functions built into it. Big sigh of relief.