Reports about President Trump inquiring with advisers about the possibility of the U.S. buying Greenland has brought with it a number of hot takes. CNN’s Chris Cillizza had a Vox-style explainer about U.S. land purchases that later required editing:

Oops! completes the picture:

Despite a slow start in U.S. settlement, the discovery of gold in 1898 brought a rapid influx of people to the territory, and Alaska, rich in natural resources, has contributed to American prosperity ever since.

Now at the bottom of Cillizza’s article at CNN the following appears: CORRECTION: This story has been updated to correctly state the history of US land purchases.

They do their best to prove it every day.