Friedrich Wilhelm August Froebel was a German pedagogue who created the concept of kindergarten and developed educational toys known as Froebel gifts. He advocated for play-based learning and learning by doing in preschool education. He started the first kindergarten in 1837 based on principles like education through play, freedom, and assistance from teachers. The kindergarten model emphasized self-activity, play, songs, construction, gifts and occupations to develop children's minds, bodies and spirits in a nurturing environment. Froebel's ideas significantly influenced modern early childhood education.