so other people not in china know
The first us penny was used in 1787 it was called a Fugio Cent
the us
The first Lunar Rover was used on Apollo 15
The exact location of where the first Doppler radar system was used cannot be determined because the first radar systems were mobile.
new york
to set interest rates
The first US $1 bill was produced in 1862, with a portrait of Salmon P. Chase
Chemical weapons were first used in war by Germany in WW1.Nuclear weapons were first used in war by the US in WW2.
1993 in the US
In 1913- invented by Gideon Sunback.The US military used them first.
First, US Civil War; Last, Vietnam War.
Mayfly was the first plane used by the US navy. It was built by pioneer aviator Glenn Curtiss in 1908.