Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.
Amythical(imaginary)creature,thedragonwasbelievedtohavelion'sclaws,scalyskin,andfierybreath.
ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.
Oneofthegreatestbreakthroughsforprofessionalwomencamein1973whenthefieldofbankingopenedupforthem.
Thefirstpaperwasmadefromthebarkofthemulberrytree.
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.