Estelle Ellis Rubinstein, who helped launch Seventeen, has died after battling lung cancer. She was 92 years old.

After working for several magazines, Rubinstein helped Seventeen’s founding editor, Helen Valentine, publish the magazine in 1944. The two later worked to launch Charm magazine, which, according to the AP, established women as a separate market segment from men.

Rubinstein is survived by her son, Ellis Rubinstein; her daughter, Nora Rubinstein; two grandchildren and one great-granddaughter.