The first event was held in
Lucerne,
Switzerland, in 1962. The event then was held every four years until 1974, when it became an annual competition. Also in 1974, men's
lightweight and women's open weight events were added to the championships. Initially, men's events were 2000 metres long and women's events 1000 metres. At the 1984 World Championships in
Montreal, Canada, women's lightweight demonstration events were raced over a 2000-metre course for the first time. In 1985, Women's lightweight events were officially added to the schedule and all men's and women's events were contested over a 2000-metre course. Since 1996, during (Summer)
Olympic years, the
World Rowing Junior Championships are held at the same time. In 2002, adaptive rowing events were introduced for the following classes of
disability: LTA (legs, trunk and arms), TA (trunk, arms), and A (arms-only). In 2009, the A category was replaced by AS (arms and shoulders), and an ID (intellectually disabled) category was added (but then removed after the 2011 Championships). From 2017, the designations AS, TA, and LTA have been changed to PR1, PR2, and PR3. ==Boats==