Charles Darwin was born on the same day as Abraham Lincoln.

Both Darwin and Lincoln were born on February 12, 1809, but in much different settings. While America’s 16th president was born in a rude log cabin in the Kentucky wilderness, Darwin was born in a grand Georgian house on an estate overlooking the River Severn and the medieval market town of Shrewsbury, England.

Charles Darwin waited more than 20 years to publish his groundbreaking theory on evolution.

Darwin’s five-year voyage around the world on HMS Beagle, which ended in 1836, provided him with invaluable research that contributed to the development of his theory of evolution and natural selection. Concerned, however, about the public and ecclesiastical acceptance of his deeply radical idea, he did not present his theory on evolution until 1858 when he made a joint announcement with British naturalist Alfred Russel Wallace, who was about to go public with a similar concept to Darwin’s. The next year, Darwin published his seminal work, “The Origin of Species by Means of Natural Selection.”

Charles Darwin suffered from chronic illnesses.

After returning from his trip around the world, Darwin began to suffer from exhaustion, eczema and chronic bouts of nausea, headaches and heart palpitations that would persist for the rest of his life. Some speculate that during his travels Darwin may have contracted a parasitic illness called Chagas disease that can eventually result in cardiac damage, which ultimately caused Darwin’s death.

Charles Darwin composed a pro/con list to decide on whether to marry.

Displaying a logical inclination even in matters of the heart, Darwin in 1838 composed a list with two columns delineating the upsides and downsides of marriage. In the “Marry” column: “children,” “constant companion (and friend in old age)…better than a dog anyhow” and “someone to take care of house.” In the “Not Marry” ledger: “freedom to go where one liked,” “conversation of clever men at clubs” and “loss of time.” Not on Darwin’s list, however, were family ties for he married his first cousin Emma Wedgwood in 1839.

Charles Darwin dropped out of medical school.

Darwin’s father was a successful doctor who groomed his son to follow in his footsteps. After spending the summer of 1825 serving as an apprentice in his father’s practice, he entered one of Britain’s top medical schools at the University of Edinburgh. Darwin, however, hated the sight of blood and was bored with the lectures. He left medical school and dashed his father’s dreams.

Charles Darwin is buried inside Westminster Abbey.

After Darwin passed away on April 19, 1882, his family began preparations to bury him in the village where he had spent the last 40 years of his life. However, Darwin’s friends and colleagues began a lobbying campaign to give him the high honor of burial inside London’s Westminster Abbey. After newspapers and the public joined the chorus, the Dean of Westminster gave his approval. A week after his death, Darwin was laid to rest in England’s most revered church near fellow scientists John Herschel and Isaac Newton.