Why the programme keeps changing
The Olympic sports list is not a static roster. The International Olympic Committee periodically reviews the core programme, and since recent reforms each host city can propose extra sports that suit local interest. That is how breaking, skateboarding, sport climbing, and surfing joined within a few years of each other.
How it works
Sports are grouped by programme — Summer or Winter — and each has a debut year marking its first appearance on the modern Games. A sport can be governed by a single international federation yet contain several disciplines:
Aquatics → swimming, diving, water polo, artistic swimming
Cycling → road, track, mountain bike, BMX
Gymnastics → artistic, rhythmic, trampoline
Skiing-family → alpine, cross-country, freestyle, ski jumping, Nordic combined
Debut year is the first time a sport appeared, not necessarily an unbroken run. Tennis debuted in 1896, vanished after 1924, and returned in 1988 — so its modern continuous history is shorter than its debut year suggests.
Tips and notes
Use the debut-year sort to see the timeline of the Games filling out: athletics, swimming, fencing, and gymnastics anchor 1896, while the most recent additions cluster around 2016–2024. Winter sports start later because the first Winter Games were only held in 1924; several, like figure skating and ice hockey, were actually contested at Summer Games before that. The notes column flags the quirks — banned editions, weather cancellations, and demonstration-to-medal transitions.