invention09876543212121

What did this invention replace?**
 * What is the name of the invention?** //Machine gun//
 * What is the name of the inventor?** //R.J Gatling//
 * When was it invented?** 1862
 * What did it do?** //It made it easy to kill enemy soilders, with a rapid pace of fire//
 * How did the invention help to solve problems and make life easier for people?** //One of the problems it solved was to kill enemy's more efficantly. It was feared through the battlefeild, and won many wars.//
 * In what other ways did it change the way people lived?
 * What was the biggest impact it made on people's lives?**
 * How was the future changed because of this invention?**