Question

what are 4 new inventions, designs, or ideas in the 1780's?

Answer 1

#1 Ice Cream 
#2 Mayonnaise
#3 Piano
#4 Light bulb
#5 Gas turbine
#6 Bicycles
#7 The first Ambulance
#8 Cotton gin
#9 Ball bearings
#10 Preserving jar
#11 Soft drink (soda)
#12 Batteries
#13 Lithographing 
#14 Smallpox vaccination