As Wikipedia says:

Darwin Day is a recently instituted celebration intended to commemorate the anniversary of the birth of Charles Darwin on February 12, 1809. The day is used to highlight Darwin’s contribution to science and to promote science in general.

Today is the bicentenary of Darwin’s birth and the 150th anniversary of the publication of the On the Origin of Species. So, take some time to read.

“I love fools experiments.
I am always making them.“

Charles R. Darwin (b. 1809 – † 1882)