Why Economics started in 1776

-Money and trade had been around like, forever, so why did we only get a discipline of Economics in 1776?
-We needed government policy creating markets, like England was doing at the time. Beyond laws and police, they were also implementing monetary policy pegging the value of currency to silver but by only “pegging” and not directly using, they were also greatly increasing the money supply
-That required careful regulation of the banks supplying paper money. France and Sweden had already tried creating state-supported central banks, but they failed because they let the currencies get too speculative. So theorists of Smith’s day felt pegging money to precious metals was the answer