Simplify the following text for a Grade 6 native English-speaking person.
Original: She named the first new chemical element that she discovered polonium ( 1898 ) for her native country , and in 1932 she founded a Radium Institute ( now the Maria SkÅ odowskaâ `` Curie Institute of Oncology ) in her home town , Warsaw , headed by her physician sister BronisÅ awa .
Simplified: In 1932 , she founded a radium institute in her home town , Warsaw . It was run by her sister , BronisÅ awa .