Original: Efforts begun in 1996 to promote the inclusion of orienteering in the Olympic Games have so far been unsuccessful, although orienteering became a sport in the World Games in 2001, and is a sport in the Summer Deaflympics.
Simplified: In the year 1996 some people decided to start to try to have orienteering as a sport in the Olympic games. It has yet to become a sport in the Olympics