during a visit to the Egyptian section of the Rijksmuseum van Oudheden in The Netherlands. In his paper, Sarton elaborates on the misunderstandings the name Isis can generate: in the early years, Isis was often linked to freemasonry, because some of their rites are purported of Egyptian origin. Another misinterpretation was that Isis referred to theosophy, most likely caused by the book entitled Isis Unveiled (1877) by Helena Blavatsky, who was the leader of the theosophic movement at that time. Isis has also been assumed to be a journal devoted to Egyptology. It is sometimes incorrectly written ISIS, but using all upper-case letters suggests that the title is an acronym, which it is not; this is a particularly unfortunate mistake, since it could create an association with the militant Islamic State of Iraq and Syria. Editors The following persons are or have been editors-in-chief: Abstracting and indexing The journal is abstracted and indexed in: According to the Journal Citation Reports, the journal has a 2017 impact factor of 1.070, ranking it 11th out of 61 journals in the category "History and Philosophy of Science" (Science edition). References External links English-language journals History of science journals History of medicine journals University of Chicago Press academic journals Publications established in 1912 Quarterly journals 1912 establishments in Belgium