the largest recruiting events in Europe, and the largest in Switzerland. UNIPOLY is the EPFL Association for Ecology, the Association works to create awareness of ecology on campus and in western Switzerland. UNIPOLY is part of the World Student Community for Sustainable Development, an international network of student organizations for sustainable development consisting of EPFL, ETH Zurich, Massachusetts Institute of Technology, University of Tokyo, University of Fort Hare, University of Nairobi, Chalmers, and University of Yaounde. The Anime and Manga club, PolyJapan, schedules viewings of seasonal anime on a regular basis. Music festivals Several music festivals are held yearly. The largest one is the Balélec Festival, organized in May each year since 1981. The festival welcomes 15,000 visitors to around 30 concerts. Archimedean Oath The EPFL was the birthplace of the Archimedean Oath, proposed by students in 1990. The Archimedean Oath has since spread to a number of European engineering schools. The Archimedean Oath is an ethical code of practice for engineers and technicians, similar to the Hippocratic Oath used in the medical world. Harassment and sexism In 2020, the student association Polyquity published numerous testimonies from students via an instagram account @payetonepfl denouncing cases of sexual, homophobic and racist harassment as well as cases of rape within the associations present on campus but also within the teaching staff. The student association denounces serious failings of the institution that is supposed to manage harassment. EPFL Alumni network The mission of EPFL Alumni is to provide graduates of the school an international network and a strong and lasting relationship upon graduation. It offers graduates a directory of over 30,000 EPFL graduates across the globe with access reserved to alumni. It provides opportunities for meeting, training and consulting, and creates a platform for exchange and services on topics as diverse as career, expatriation, research, entrepreneurship and volunteerism. The alumni group ensures that graduates can benefit from the support of older peers by fostering opportunities to meet in Switzerland or abroad. In 2018, a new initiative was launched for alumni to mentor young graduates and prepare them for the EPFL forum event as well as their first steps in the professional world. EPFL Alumni has built a strong international network of chapters. They independently offer activities, conferences and outings, with financial and logistical support from EPFL Alumni. Scientific partners EPFL is the official scientific advisor of Alinghi, twice winners of the America's cup