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.
Administrators in England attempted to collect the first true Income-Tax, a tax on wages, in 1404, but the public quickly demanded its repeal, and all tax records were burned. Britain introduced I-T for the second time in 1799. This tax raised revenues for the Napoleonic Wars against France.