Think about the events below. Which of these happened first in the history of Magie's game? Parker Brothers bought the rights to the Landlord's Game for 500 U.S. dollars. Charles Darrow sold a knockoff of the game to Parker Brothers. Monopoly sold more than 2 million copies in the first two years. Knockoffs of the game were made and spread through social circles.

Based on the events mentioned, the chronological order would be as follows:

1. Knockoffs of the game were made and spread through social circles.
2. Charles Darrow sold a knockoff of the game to Parker Brothers.
3. Parker Brothers bought the rights to the Landlord's Game for 500 U.S. dollars.
4. Monopoly sold more than 2 million copies in the first two years.

So, the first event in the history of Magie's game would be "Knockoffs of the game were made and spread through social circles."