Kindergarten originates  from German , which literally means "garden  
So a garden of kids?  My son went to Kindergarten.
Kindergarten
Kindergarten (, ; from German , literally meaning 'garden for the children') is a preschool educational approach based on playing, singing, practical activities such as drawing, and social interaction as part of the transition from home to school. Such institutions were originally created in the late 18th century in Bavaria and Strasbourg to serve children whose parents both worked outside home. The term was coined by the German Friedrich Fröbel, whose approach globally influenced early-years education. Today, the term is used in many countries
Iranian Azerbaijan region. The first kindergarten he established was called the "baghch-e atfal" (Persian: باغچه اطفال) which means the "kids garden". That is why he was given the nickname "baghcheban" (Persian: باغچه بان) which literally means "gardener" in the Persian language. 
He founded a school for the deaf in 1924. That school was located next to his kindergarten. In 1928 he wrote the first Iranian children's book in Persian. The book was called "baba barfi