1. Language Learning: Language and Communication. Languages of the World. Endangered Languages. Global English

15. Sports and Recreation: Sports Events, National Sports. Olimpic Games. Outdoor and Indoor Sports. Extreme Sports.
Sports and Recreation. Recreational sports are those activities where the primary purpose of the activity is participation, with the related goals of improved physical fitness, fun, and social involvement often prominent. ... Recreational sports are the most popular type of athletic activity undertaken throughout the world.
Sports Events, Major Sports Events in the World
FIFA World Cup.
Olympic Games.
The UEFA Champions League.
Cricket World Cup.
Super Bowl.
Wimbledon Tennis.
Tour de France Cycling.
Rugby World Cup.
National Sports. A national sport is considered to be an intrinsic part of the culture of a nation. Some sports are de facto (not established by law) national sports, as Sumo is in Japan and Gaelic games are in Ireland, while others are de jure (established by law) national sports, as taekwondo is in South Korea.
. Olimpic Games. The Olympic Games[1] is an international multi-sport event subdivided into summer and winter sporting events. The summer and winter games are each held every four years (an Olympiad[2]). Until 1992, they were both held in the same year. Since then, they have been separated by a two year gap.

The original Olympic Games were first recorded in 776 BC in Olympia, Greece, and were celebrated until AD 393.[3] Interest in reviving the Olympic Games proper was first shown by the Greek poet and newspaper editor Panagiotis Soutsos in his poem "Dialogue of the Dead" in 1833.[4]Evangelos Zappas sponsored the first modern international Olympic Games in 1859. He paid for the refurbishment of the Panathinaiko Stadium for Games held there in 1870 and 1875.[4] This was noted in newspapers and publications around the world including the London Review, which stated that "the Olympian Games, discontinued for centuries, have recently been revived! Here is strange news indeed ... the classical games of antiquity were revived near Athens".[5]

Outdoor and Indoor Sports.
outdoor sport - a sport that is played outdoors. field sport. hunting, hunt - the pursuit and killing or capture of wild animals regarded as a sport. fishing, sportfishing - the act of someone who fishes as a diversion.
Indoor sports and recreation refers to predominantly participant sports conducted within an enclosed building. Indoor sports facilities such as bowling, health club or spa, racquet club, skating rink, etc. Indoor sports – who is going to build, operate and maintain these facilities.
Extreme Sports. Extreme sports, also known as action sports or alternative sports, sporting events or pursuits characterized by high speeds and high risk. ... The sports most commonly placed in this group are skateboarding, snowboarding, freestyle skiing, in-line roller-skating, street lugeing, and BMX and mountain biking etc.