1950
Farm electrification nearly universal
By the early 1950s, electricity had reached nearly all American farms—up from about 11% in 1932—closing the rural-urban gap.
Reconciliation note: EIA cites 'almost all' by 1950; ClearPath cites 90%+ by 1953—presented as early 1950s.
Historical era
Petroleum age (1950–1972)
Petroleum became the most-consumed U.S. energy source in 1950 and fueled transportation-led growth.