Simplify the following text for a Grade 4 native English-speaking person.
Original: Traditionally representing graziers , farmers and rural voters generally , it began as the Country Party , but adopted the name National Country Party in 1975 and changed to its present name in 1982 .
Simplified: It was first called the Country Party when it started in 1920 and then became the National Country Party in 1975 . In 1982 it became the National Party .