Same reasons they are important now- defense, and hunting. The US was expanding into wilderness areas, and firearms were needed in those areas.
Well, Marlin bought ballard firearms in the late 1800's and produced their rifles. The relationship was carried out until about 1915 when ballard became no more...
Colt firearms have been made since @ the mid 1800's
S&W has been making firearms since the late 1800's.
Inexpensive; late 1800's made.
May I suggest a book (not the Web) called "2008 Standard catalog of Firearms" it's huge and list all types of firearms. I've traced guns back into the 1800.
Not possible to answer this the way it is phrased. The 1800s covered 100 years- and in that time, firearms ranged from flintlocks in 1800 to machineguns in 1899.
That is a period of 100 years. In that time, firearms advanced from single shot, hand made smoothbore flintlocks to mass produced metallic cartridge firing repeating rifled firearms, revolvers and bolt action rifles, semi-auto firearms and machineguns. A major portion of the history of firearms was written in that 100 years, and is FAR too broad to be covered in a short answer here.
nothing
No. Mass production of firearms using interchangeable parts started circa 1800.
Determines the use of the firearm.
The election of 1800 was more important than the election of 1796. In 1796 George Washington was elected president unopposed. The election of 1800 had several people vying for the presidency.
It helped the revolution in the 1800's to communicate faster. It helped the revolution in the 1800's to communicate faster.