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How did the scheduling of the Summer and Winter Olympic Games change after 1992?

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A woman in a white pleated dress lights the Olympic torch from a large flame in a gold cauldron, with a crowd seated in the background at Panathenaic Stadium in Athens. — Olympic Games An actress playing the role of an Athenian high priestess lights the Olympic flame in Athens, October 31, 2017. The torch was later carried to Pyeongchang, South Korea, for the 2018 Winter Olympics.

For most of the 20th century, the Summer and Winter Olympic Games were held in the same calendar year. This changed following a 1986 amendment to the Olympic Charter, which mandated that the two events be held alternately every two years.123

This new staggered schedule went into effect in 1994, when the Winter Games were held in Lillehammer, Norway. Consequently, the Winter Games continued to occur on a four-year cycle, but they were shifted so that they no longer coincided with the Summer Games, which maintained their own original four-year cycle. This adjustment resulted in an Olympic event taking place every two years, alternating between the Summer and Winter editions.132