It escalated (not) quickly

Free to Run : In 1967, Katherine Switzer became the first woman to run and finish the Boston Marathon, despite being regularly assaulted by the race manager. She inspired a generation of women runners. In the 2017 Boston Marathon, she was joined by over 13,700 women
An old guy living in miserable condition got a new house and new clothes.
4 shades of blue in the Arctic
Head of a woolly mammoth found in a Michigan farm
Margay, cat. extremely rare