Odense Odense River to the south and Naesbyhoved Lake (now dry) to the north. Nonnebakken, one of Denmark's former Viking ring fortresses, lay to the south of the river. Today, Odense's Møntergården Museum has many artefacts related to the early Viking history in the Odense area. The Vikings built numerous fortifications along the river banks to defend it against invaders coming in from the coast. The city celebrated its thousandth anniversary in 1988, commemorating the first mention of the town's name in a letter dated 18 March 988 from the German Emperor Otto III which granted rights to Odense and neighbouring
Odense 2.5 to 10 km. There are many smaller sports clubs in Odense covering athletics, badminton, basketball, boxing, climbing, cycling, fencing, football, golf, gymnastics, handball, jujitsu, karate, riding, roller-skating, shooting, swimming, table tennis, tennis, volleyball, yoga and wrestling as well as several specialising in facilities for people with disabilities. In early December 2017, the world's largest esports event , ESL's Pro League Season 6 finals were held in the 4,000-seat Arena Fyn. The event would return to Odense for its Season 8 finals, won by the hometown heroes Astralis, in December 2018. The Port of Odense consists of three main basins