Reminder that during the time generally pointed to as 'the good old days' (the 1950s) the top tax bracket was 85% (!): https://web.stanford.edu/class/polisci120a/immigration/Feder...
Now, this doesn't directly translate to higher taxes on the wealthy (there are a lot of factors that go into effective tax rate) but it puts the handwringing around AOC's 70% top tax bracket in perspective.