Encyclopdia Britannica was the only encyclopedia in 1901.
 In this era, the Britannica moved from being a three-volume set (1st edition) compiled by one young editorWilliam Smellieto a 20-volume set written by numerous authorities
== Present status ===== Print version ===Since 1985, the Britannica had four parts: the Micropdia, the Macropdia, the Propdia, and a two-volume index

