Across human history, it's probably 10,000 BC to the present era. Within that period, the sliver of time occupied by the Second Industrial Revolution, as a cata

Across human history, it's probably 10,000 BC to the present era. Within that period, the sliver of time occupied by the Second Industrial Revolution, as a catalyst for accelerating growth and progress henceforth, hasn't yet been bettered by any other period for the scale of its impact.