While effective tax rates are lower than historic averages (measured since the time the federal income tax was reintroduced in 1913), they are not at "historic

While effective tax rates are lower than historic averages (measured since the time the federal income tax was reintroduced in 1913), they are not at "historic lows" as the lowest statutory and effective tax rates were the 1913 rates, when approximately 97% of the U.S. taxable population was not subject to income tax, and the lowest statutory/effective rate was 1% on those earning $3000/year or more ($95k in 2024 dollars).