Smith demonstrated that the United States Ordnance Department was the prime mover in bringing about machine-made interchangeable parts production of small arms.
It was here where Machiavelli wrote his most famous piece, The Prince. One of the first and main topics discussed in The Prince outlines the rest of the issues mentioned in the books, which are the various kinds of government and how they are established.
When the Medici family returned to power in 1512, Machiavelli was dismissed and briefly jailed. He then wrote The Prince, a handbook for politicians on the use of ruthless, self-serving cunning, inspiring the term Machiavellian and establishing Machiavelli as the father of modern political theory. He also wrote several poems and plays.