Patty Hill was an American educator and kindergarten pioneer, born on March 27, 1868. She is best known for co-creating the popular children's song "Happy Birthday to You" with her sister, Mildred J. Hill. The song was originally written for a classroom activity and has since become a staple in birthday celebrations worldwide. In addition to her musical contributions, Patty Hill was a strong advocate for early childhood education. She played a significant role in developing the kindergarten movement in the United States, emphasizing the importance of play and creativity in learning. Her work has had a lasting impact on educational practices for young children.