In Google today features the birth of Gregor Mendel.
Gregor Johann Mendel, born on July 20, 1822, was a Czech-German Augustinian friar and scientist. While working with pea plants he discovered that by cross breeding them some characteristics are inherited and passed on from generation to generation. Without the knowledge of DNA, he developed two laws of heredity which became the basis of modern genetics.
Gregor Mendel is also known as the father of modern genetics.