For those who are curious, pre-vocational/vocational ballet students start ballet at 8-10 years of age and eventually take 20-30 hours of ballet technique classes along with other dance forms, conditioning and rehearsal. You can be assessed out at any year.
16th Amendment Forward: In 1913, with World War I looming, ratification of the 16th Amendment permanently established the income tax. The amendment gave Congress the authority to impose a tax on the income earned by both individuals and corporations. By 1918, government revenue generated from the income tax exceeded $1 billion for the first time, and topped $5 billion by 1920. The introduction of the mandatory withholding tax on employee wages in 1943 increased tax revenue to almost $45 billion by 1945.
Wars created the need for income taxes. England funded the War of 1816 in part by taxing what clergy, office holders and military officers made. The U.S. first taxed personal income in 1861 as part of the effort to pay for the Civil War.