The Olympic Games are divided between summer and winter events and take place every four years. The seasons alternate so that an event is held once every two years. It’s symbol compromises of five interconnected rings in five colors, from left to right blue, yellow, black, green, and red is perhaps the most iconic symbol of the Games. The logo was designed in 1912 by Baron Pierre de Coubertin, a cofounder of the modern Games.
According to the Olympics website, the Olympic symbol of the five interlocking rings visually demonstrates the union of the five continents and the meeting of athletes from around the world.
Those five continents are America (combining North and South), Africa, Asia, Europe and Oceania. The five colors (along with white, which is the background color of the Olympic flag) were chosen because at least one of those colors appeared on the national flag of each country participating at the time Coubertin came up with the design.
The connection of the rings was designed to embody a unified world. Not only do they represent the union of continents but the meeting of athletes from around the world at the Olympic Games.