Which of these did not happen at the 1976 Summer Olympic Games?

The Fijians had to wait until Rio in 2016 to win the country's first Olympic gold medal in the men's rugby sevens.

The 1976 Montreal Summer Olympics, officially called the Games of the XXI Olympiad (French: Les XXIes olympiques d'été), was an international multi-sport event in Montreal, Quebec, in 1976, and the first Olympic Games held in Canada. Montreal was awarded the rights to the 1976 Games on May 12, 1970, at the 69th IOC Session in Amsterdam, over the bids of Moscow and Los Angeles. It is so far the only Summer Olympic Games to be held in Canada. Calgary and Vancouver later hosted the Winter Olympic Games in 1988 and 2010, respectively.

Some of the games highlights were:

After a rainstorm doused the Olympic Flame a few days after the games had opened, an official relit the flame using his cigarette lighter. Organizers quickly doused it again and relit it using a backup of the original flame.

At age 14, gymnast Nadia Comăneci of Romania became the first person to score a perfect 10 at the Olympics, recording seven 10.00 scores and winning three gold medals.

Women's events were introduced in basketball, handball and rowing.