Simplify the following text for a Grade 8 native English-speaking person.
Original: After World War II , he studied law and economics at the universities of Halle and Leipzig ( 1946 â `` 1949 ) and joined the East German Liberal Democratic Party ( LDPD ) in 1946 .
Simplified: After the war , he studied economics and law in Halle and Leipzig . He joined the East German Liberal Democratic Party ( LDPD ) in 1946 .