10、HappyBirthdayandBirthdayCakesThesong“Happybirthdaytoyou”issungallovertheworldjustbeforethebirthdayboyorgirlblowsoutthecandlesonthecake.Itissosimpleinmelody1andlyricthatchildrenasyoungasthreecansingitwithouthesitation.Thesong,withitsoriginaltitle“GoodMorningtoYou”,waswrittenin1893bythetwosisters,MildredandPattySmithHill.Theywerethedaughtersofaprogressive2Kentuckycouple,whobelievedinfemaleeducationatatime--themid-nineteenthcentury--whenitwasstillanovelideaandwhotrainedtheirtwodaughterstobeschoolteachers.Theywerelonginvolvedinelementary3education,andPatty,inparticular.Sheachievedconsiderableprominence4asapioneerinkindergarten5education,andforseveraldecadesamajorspokespersonforpreschooleducation.ShetaughtatColumbiaUniversitysTeachersCollegefrom1905to1935,andatherretirementbecameoneofthefirstwomentobenamedaprofessoremerit