Your latest find is more of an invention: the new geological age of the “Anthropocene”.
This happened at a meeting three years ago. Someone said something about the Holocene, the geological era covering the period since the end of the last ice age. I suddenly thought this was wrong. In the past 200 years, humans have become a major geological force on the planet. So I said, no, we are not in the Holocene any more: we are in the Anthropocene. I just made up the word on the spur of the moment. But it seems to have stuck.

Dutch Nobel-laureate Paul Crutzen interviewed in the New Scientist.