|1971 -|| Construction of Worlds of Fun Begins.|
|1973 -|| Worlds of Fun Opens on May 26th!|
|1974 -|| The Forum Amphitheater in Americana Opens
The Red Baron bi-plane ride is added to Scandinavia
Worlds of Fun Hosts its One Millionth Guest
|1975 -|| Dan'l Coon, Sam Panda and Grrrtrude the Gorilla, the park's mascots for years, premier at the park.
|1976 -|| America's Bicentennial Anniversary
The Screamroller Added to Americana
Bicentennial Square Added to Americana
|1977 -|| Singapore Sling (Bamboozler) Added to The Orient
Wobble Wheel Added to Americana
Bounce-A-Roos Added to Europa
Nairobi Nigel's Pygmy Playhouse added to Africa
Half Pint's Peak Added to Scandinavia
Micro Moto Bahn added to Scandinavia
|1978 -|| The Aerodrome is Added to Americana
The Barnstormer Biplane Ride is added to Aerodrome
Red Baron moved to Aerodrome
Boat Tank (Tot's Yachts) added to Scandinavia
Game Street U.S.A added to Americana
The Safari is Removed
|1979 -|| Le Carousel is Added to Europa
The Zulu Added to Africa
Beetle Bumps Added to The Orient
The Wingding is Added to the Aerodrome
Funicular moved to Africa; renamed Silly Serpent
|1980 -|| Singapore Sling Moved to Americana; Renamed Whirligig
The Orient Express is Added to The Orient
Nairobi Nigel's Pygmy Playhouse is Removed
The Wingding is Removed
|1981 -|| The Incredi-Dome is Added to the Aerodrome
Casbah Games is Added to Africa
|1982 -|| Worlds of Fun Celebrates its 10th Anniversary!
Oceans of Fun, a 60-acre water park, opens on May 22nd!
River City is Added to Americana
River City Rampage (Fjord Fjarlene) is Added to River City
Pony Promenade Added to Americana
Viking Vheel, (Head over Wheels) added to Scandinavia
Country Junction, a 1000 seat amphitheater is added.
|1983 -|| Screamroller Converted to USA's 1st Stand-Up Coaster and renamed Extremeroller (EXT)
The Starbeam Music Machine opens in the Tivoli Theatre
The Barnstormer Biplane Ride is Removed
Typhoon and Frisbee Folf are added to Oceans of Fun
|1984 -|| Fury of the Nile Added to Africa
Extremeroller Converted Back into Sit-Down Coaster
Octopus Moved to the Aerodrome; Renamed Tail-Spinner
The Schussboomer is Removed
|1985 -|| "Stax of Wax" premiers in the Moulin Rouge Theatre
The Haunted Theatre Show premiers in Tivoli Music Hall
|1986 -|| Omegatron Added to Americana
Half Pint's Peak is Removed
The Aerodrome is Removed
Silly Serpent is Removed
Whirligig moved to The Orient; renamed Bamboozler
|1987 -|| Pandamonium! childrens' area opens
The Sky High/Sky Heis are Removed
Caribbean Cooler added to Oceans of Fun.
|1988 -|| Worlds of Fun Celebrates 20 Million Guests
Python Plunge is Added to Africa
The Screamroller is Removed
Tivoli Picnic Terraces Added to Scandinavia
|1989 -|| Timber Wolf wooden coaster is added to Americana|
|1991 -|| Beat Street is Added to Americana, replacing River City
Timber Wolf is best wooden coaster in the World
Fjord Fjarlane Moved to Scandinavia
Crocodile Isle, a new area for children, is added to Oceans of Fun
|1992 -|| Worlds of Fun Celebrates its 20th Anniversary
Monsoon is Added
Coconut Cove is added to Oceans of Fun.
WOF and OOF are joined via Same Day Gateway
|1993 -|| Wacky Worm is Added to Pandamonium!
The Victrix Firing Range is Removed
Wobble Wheel is Removed
|1994 -|| Sea Dragon is Added to Scandinavia|
|1995 -|| Cedar Fair L.P. buys WOF & OOF from Hunt Midwest
Captain Kidds, an interactive play ship for children, is added to Oceans of Fun.
Cyclone Sam's is Added to Americana
The Cotton Blossom is Removed
Tram Rides are Discontinued
The Floral Clock is Removed
Marionette Show is Removed
|1996 -|| Detonator is Added to Americana
The RipCord is Added to Americana
Pandamonium! is Removed
"Fins & Flippers" Canceled
Octopus is removed
|1997 -|| Worlds of Fun Celebrates its 25th Anniversary
Bearenstain Bear Country is Added
Summer Spectacular Premiers in the Forum
Zambezi Zinger is Removed
The Incred-O-Dome is Removed
Americana Entrance is Closed
|1998 -|| The Largest Addition to Date, Mamba is Added to Africa
Octopus is reinstalled in Scandinavia
The Scrambler is Moved to Americana
|1999 -|| Grand Prix Raceway added to Americana
Coasters Midway Grill opens in Africa
"Stax of Trax" debuts in the Moulin Rouge
Forum Amphitheater re-named Heart of America Theater
The Plunge is closed at end of season
Hurricane Falls opens at Oceans of Fun
Frisbee Folf is removed from Oceans of Fun
Steadman Plaza Removed
The Oriental Arch is removed
|2000 -|| Boomerang is added to Africa
The Rock opens in Americana
Bearenstain Bear Country Removed
Either Oar Removed
|2001 -|| Camp Snoopy Added to Americana
Steadman Plaza Added
Camp Bus, Woodstock's AirMail and Snoopy Bounce added
Worlds of Fun celebrates it's 30th Anniversary
Thunder Hawk added
"Otta Sync", a traveling musical band, premiers at the park.
Paradise Falls opens at Oceans of Fun
The Orient Express is removed
The Aquatic Arena (formerly the Dolphin Pool) is removed
Carnival of Carnivorous Clowns and House on Boo Hill are added to Halloweekends
Spinning Dragons is added to the Orient.
Camp Gonna Gitcha, The Fright Zone and Lore of the Vampire are added to Halloweekends
Worlds of Fun Village opens as the park's first on-site lodging
Peanuts Playhouse added to Camp Snoopy
Rockin' Reeler Removed
Dominion of Doom and Slash are added to Halloweekends
The largest capital expenditure to date, Patriot is added to Americana
Asylum Island is added to Halloweekends
Bloodshed added to Halloween Haunt
Halloweekends is renamed Halloween Haunt
Worlds of Fun celebrates its 35th Anniversary
Master McCarthy's Doll Factory added to Halloween Haunt
Outlaws Revenge added to Halloween Haunt
The Concert Series returns as part of the new Celebrate America Festival
The Oktoberfest Festival returns to the park.
Prowler is added to the African section.
Overlord's Awakening added to Halloween Haunt.
Snoopy's Hot Summer Lights premiers in the Europa and Africa Midways.
Cornstalkers replaces Camp Gonna Gitcha during Halloween Haunt.
Road Rally (Micro Moto Bahn) removed.
Head over Wheels (Viking Vheel) removed.
Planet Snoopy replaces Camp Snoopy in Americana.
Woodstock's Whirlybirds, Lucy's Tugboat, Sally's Swing Set, Peanut's Road Rally are added.
Flying Ace Balloon Race, Peanuts 500 and Snoopy's Rocket Express are added.
The Grand Carousel is added to Scandinavia.
Festaus picnic pavilion is replaced.
Peanuts Ponies (Pony Promenade) removed.
Zombie High added to Halloween Haunt.
Fastlane, a pay extra "skip the lines" option added.
Worlds of Fun celebrates its 40th anniversary.
Dinosaur's Alive added to Africa.
Worlds of Fun and Oceans of Fun are combined into one park.
New Slide complex (Predators Plunge/Shark's Revenge/Constrictor) added to Oceans of Fun