Those Americans, it turns out, had the highest per capita income in the civilized world of their time. They also paid the lowest taxes—and they were determined to keep it that way.
By 1776, the 13 American colonies had been in existence for over 150 years—more than enough time for the talented and ambitious to acquire money and land. At the top of the South's earners were large planters such as George Washington. In the North their incomes were more than matched by merchants such as John Hancock and Robert Morris. Next came lawyers such as John Adams, followed by tavern keepers, who often cleared 1,000 pounds a year, or about $100,000 in modern money. Doctors were paid comparatively little. Ditto for dentists, who were almost nonexistent.
In the northern colonies, according to historical research, the top 10% of the population owned about 45% of the wealth. In some parts of the South, 10% owned 75% of the wealth. But unlike most other countries, America in 1776 had a thriving middle class.