What was the most significant change to the frontier brought about by gliddens invention of barbed wire?

eroupe is a great mideval place and alot of wars went on alao

- "bill clinton ( the 42nd u.s. president, served in office from by low unemployment, declining crime rates and a budget surplus. during clinton's second term, the u.s. economy was healthy, unemployment was low and the nation experienced a major technology boom and the rise of the internet."