Well, this is the timeline I've learnt:
1735 - Linnaeus published a classification system in which he classified humans and apes together.
Late 1700 - Erasmus Darwin suggested that all life came from one source.
1809 - Jean Baptiste de Lamark put forward the first theory of evolution - changes in a species are brought about by the "use" or "disuse" of certain body parts. These changes are passed down from generation to generation. (Although the theory was disproved, it helped in the acceptance of Darwin's theory of evolution)
Late 1800s - Herbert Spencer first mentioned the concept of the "survival of the fittest".
1859 - Charles Darwin published his work, On the Evolution of Species by Means of Natural Selection. Alfred Wallace also published his works, but Darwin took precedence because of his more detailed research.
mid 1900s -> Present - The rise of Neo-Darwinism. Darwin's theories have been refined, because of the many new concepts and technologies that have been developed.
Where does Gould/Eldrige fit into all of this? I guess it would be good if I mentioned their theory of evolution.
And regarding the second part of the dot point, just refer to social classes, and how the upper classes used Darwinism as an excuse to ignore/oppress the lower classes. Also, I've read that Hitler was influenced by Darwinism, in his quest for the "perfect" Aryan race.