History of Nintendo
In 1972, the first commercially available video game console, the Magnavox Odyssey, had a light gun accessory, the Shooting Gallery. This was the first involvement of Nintendo in video games. According to Martin Picard in the "International Journal of Computer Game Research": "in 1971, Nintendo had -- even before the marketing of the first home console in the United States -- an alliance with the American pioneer Magnavox to develop and produce optoelectronic guns for the Odyssey (released in 1972), since it was similar to what Nintendo was able to offer in the Japanese toy market in 1970s".
Nintendo World Championships
The first Nintendo World Championships was in 1990, touring 30 American cities. It was based on a custom game cartridge for the Nintendo Entertainment System, which would historically become one of the most rare and valuable NES cartridges. On June 14, 2015, the second Nintendo World Championships took place for its 25th anniversary as part of Nintendo's E3 2015 coverage. The third Nintendo World Championships was held on October 7, 2017.