- 31st October - the first orienteering event in the world: NOR - Oslo (Nordmarken); 8 competitors; map scale 1:30 000; course length 10,5 km; 3 control points; winning time 1,41,07
1899
- 6th February - the first ski-orienteering event in the world: NOR - Trondheim; 12 competitors; course length 20 km; winning time 2,30,20
1900
- the first ski-orienteering relay: SWE
1906
- the first ski-orienteering relay: FIN
1928
- the first independent orienteering club: SWE - SK Gothia
1931
- -the first national championships: SWE
- the first international competition: NOR - Oslo; NOR & SWE
1936
- the establishment of SOFT (Svenska Orienteringsforbundet)
1945
- the establishment of NOF (Norges Orienteringsforbund)
- the establishment of SSL (Suomen Suunnistusliitto)
- the first orienteering magazine: FIN - Suunnistaja
1946
- the establishment of NORD (Nordisk Orienteringsrat - the Nordic Orienteering Council) = NOR, SWE, FIN, DEN
1948
- the first maps drawn especially for orienteering: NOR
- the establishment of IOF (International Orienteering Federation)
1962
- the first European Orienteering Championships (EOC): NOR; winners: D = U. Lindkvist (SWE), H = A. Hadler (NOR)
1966
- the first World Orienteering Championships (WOC): FIN; winners: D = U. Lindkvist (SWE), H = M. Lystad (NOR)
1972
- the first official international ski-orienteering contest: BUL - IPSOL (International Pokal der Ski-OL)
1975
- the first WOC Ski: FIN; winners: D = O. Svanberg (SWE), H = A. Kukkonen (FIN)
1978
- IOF-Symbols for the control descriptions used for the first time: NOR - WOC
1983
- '1. Unofficial' World Cup (WC): HUN, BEL, FIN, AUT, SWE, NOR
1984
- '2. Unofficial' WC
1987
- the first European Cup (EC) Ski: TCH, AUT, ITA, FIN, FIN, SWE
1988
- the introduction of 'the short distance race' to the WOC Ski: FIN
1989
- the first WC Ski: AUT, TCH, SWE, NOR
1990
- the first Junior World Orienteering Championships (JWOC): SWE
- the introduction of 'the short distance race' to the WC
1991
- the introduction of 'the short distance race' to the WOC: TCH
1994
- the first JWOC Ski: FIN
- IOF electronic events calendar
- electronic punching used at the WC for the first time: NOR; the Regnly system
1995
- the first Park World Tour (PWT): SWE, NOR, FIN, CZE
1998
- Ski-orienteering presented at the Olympics in Nagano
- the first official World Masters Orienteering Championships (WMOC): CZE - Novy Bor
- MTBO European Cup
1999
- the first WMOC Ski: RUS
- the first WC MTBO
2000
- European Orienteering Championships (EOC) renewed