http://www.ggdc.net/maddison/Historical_Statistics/horizontal-file_03-2009.xls" The American colonies started from essentially
zero infrastructure and savings in comparison to Europe at the time. After which, the US/American colonies progressed as follows:
GDP per capita and rank against all other European nations
1700: $527, colonies last behind all European countries
1820: $1202, US above European average, rank 7th out of 30 European countries.
1851: $1806. Great Britain is 1st in the world, remains 1st in Europe for the next half century.
1880: $3184, US second behind Great Britain (now UK). US completes world's greatest suspension bridge and transcontinental railroad.
1905: $4642, surpasses the UK for 1st.
All the above managed without a federal income tax.
(China and India did not reach the US's 1820 GDP per capita until the 1980's)