month := λ01. January
month := λ02. February
month := λ03. March
month := λ04. April
month := λ05. May
month := λ06. June
month := λ07. July
month := λ08. August
month := λ09. September
month := λ10. October
month := λ11. November
month := λ12. December

history := λyyyy mm dd. Tell me a historical event that happened on (month mm) dd yyyy

error (history 1932 09 17)