On the Revolutions of the Heavenly Spheres was not published until a month before Copernicus died.
On the Origin of Species was not published until 1859 - Darwin had the basic ideas down in 1839, but did not start thinking to publish until Alfred Russel Wallace started to publish in the mid/late 1850s, which is probably what pushed him into finally publishing. Also, Darwin only alluded to humans in the work, and didn't publish the Descent of Man until 1871.
On the Origin of Species was not published until 1859 - Darwin had the basic ideas down in 1839, but did not start thinking to publish until Alfred Russel Wallace started to publish in the mid/late 1850s, which is probably what pushed him into finally publishing. Also, Darwin only alluded to humans in the work, and didn't publish the Descent of Man until 1871.