Bang Jeong-hwan
Children’s writer and youth activist who led the Cheondogyo Youth Association and Saekdonghoe and created Children’s Day and the magazine "Eorini"
Son Byong-hi's son-in-law, he worked within the Cheondogyo movement. In 1921 he founded the Cheondogyo Youth Association and popularised the word eorini, "child," urging respect for children as persons. He held the first Children's Day in 1922, and in 1923 founded the Saekdonghoe in Tokyo and launched the magazine Eorini. He published a collection of adapted fairy tales, Gift of Love, and promoted storytelling and children's songs.