About: http://webisa.webdatacommons.org/256875499

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	One hundred years ago everybody on Earth believed chemical elements, so called periodic table, hydrogen, carbon, helium and the atoms are the smallest elements in nature.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org