[WhoisAlanGreenspan?]

I thought your question interesting;

Here's a fun list of new inventions in the 18th century

Pianos, batteries, flush toilets, steam engines, gas lighting, bifocals, parachutes and the sextant. Just interesting stuff to ponder.

[adorno]

Parachutes? Batteries?

What were the batteries powering back then?

Parachutes? In anticipation of jumping out of airplanes. For jumping off bridges or cliffs?