At the end of the conflict, 303 Dakota men were condemned to death by a U.S. court after very brief trials, KARE reports. President Abraham Lincoln approved the death sentences for 39 of them. One was given a reprieve, and 38 men were hanged in Mankato. It was the largest mass execution in U.S. history.
Here's more on the Minnesota History Center exhibit on the war that changed Minnesota forever.
The Brown County Historical Society in New Ulm is also commemorating the 150th anniversary of the conflict in mid-August.
KARE has a close look at the conflict and the research project to document it: