text: Beilstein was founded as German-language standard reference work for organic chemistry was intended to supplement the content of the Chemisches Zentralblatt. In light of the leading role of German chemistry in international science, Beilstein's handbook quickly became renowned as a standard reference throughout the world. The first edition of his "Handbuch der organischen Chemie" appeared in two volumes in 1881 and 1883, referencing 15,000 compounds in about 2,200 pages. The second edition appeared in three volumes from 1885 to 1889 and 4,080 pages, and from 1892 to 1899 came the third edition in 4 volumes and 6,844 pages. In 1896, the continuation of the handbook was placed in the care of the German Chemical Society, which first published the supplementary volumes of the 3rd edition and, from 1918, the fourth edition. Starting with the 5th supplement, following the superseding of German by English as most relevant scientific language, the handbook appeared in English.