History of Science and Engineering Annotation << Back THE DEVELOPMENT BY L. EULER OF THE TASK «ABOUT MEETINGS» A.E. Malykh, A.A. Davydova The article considers the contribution of L. Euler to the formation and development of the task. The connection with other combinatorial problems is shown: about pair cards, about married couples and the complete displacement of elements. The particular solutions described by L. Euler are presented. Keywords: combinatorics; combinatorial analysis; task "about meetings"; Leonard Euler; history of mathematics. DOI: 10.25791/intstg.05.2019.657 Contacts: E-mail: sky591@rambler.ru Pp. 48-53.