Unlike other coins, you never know who you’re gonna get on a dollar! If you find one from the 70’s you’ll see Dwight D. Eisenhower and the Liberty Bell, but if it’s from 1979, 81, or 99 it will be Susan B. Anthony. People must have wanted to hold on to their Anthony dollars because the inventory was almost depleted, so they made a bunch more with Sacagawea instead. In 2007 Congress decided they were going to start throwing presidents on them, 4 different ones every year. Really, dollar coins are just expensive quarters because people don’t remember they exist.