The headline is clickbait. Much of [Athenian government] income came from publicly owned farmland and silver mines that were leased to the highest bidders, but

The headline is clickbait. Much of [Athenian government] income came from publicly owned farmland and silver mines that were leased to the highest bidders, but Athens also taxed imports and exports and collected fees from immigrants and prostitutes as well as fines imposed on losers in many court cases. In general, there were no direct taxes on income or wealth.