Simplify the following text for a Grade 10 native English-speaking person.
Original: In 1931 the Statesman merged with the Liberal weekly the Nation and Athenaeum , and changed its name to the New Statesman and Nation , under which title it remained until 1964 .
Simplified: In 1930 the Statesman merge with the Liberal weekly the Nation , and changed its name to the New Statesman and Nation , which it remained until 1964 .