1848 - archaeological site, c.1000-1200 CE (Aztalan State Park)

1869 - find of giant human skeleton (Potosi)

1873 - poltergeist (Saint Croix county)

1876 - sighting of lake monster (Brown's Lake)

1880 - disappearance (Racine)

1881 - fall of web-like substance (Green Bay); fall of web-like substance (Ozauke county); fall of web-like substance (Sheboygan); find of 'Roman coin' (Milton); fall of web-like substance (Milwaukee)

1883 - find of 'Roman coin' (Oshkosh)

1886 - daytime darkness (Oshkosh)

1889 - sighting of lake monster (Devil's Lake)

1890 - archaeological site, with find of serpent effigy (Fox River, Burlington)

1891 - sighting of 'white' native Americans (Ashland); sighting of Lake Monster (Red Cedar Lake)

1892 - lake monster hoax (Lake Geneva)

1897 - nocturnal light (Winnebago Lake); 'airship' sighting, with message (Appleton); nocturnal light (Baraboo); 'airship' inventor (Brule); nocturnal light (Chilton); nocturnal light (Clayton); nocturnal light (Cumberland); nocturnal light (Darlington); nocturnal light (Delaven); UFO/CE-1 (Omro); nocturnal light (Oshkosh); fall of worms (Palmyra); nocturnal light (Rio); nocturnal light (Durand); nocturnal light (Eau Claire); nocturnal light (Evansville); nocturnal light (Fond du Lac); nocturnal light (Fort Atkinson); nocturnal light (Grantsburg); nocturnal light (Hayward); nocturnal light (Hillsboro); nocturnal light (Lake Mills); nocturnal light (Lamont); nocturnal light (Lodi); nocturnal light (Merrillan); UFO/CE-3 (Milwaukee); nocturnal light (Sheboygan); nocturnal light (South Byron); nocturnal light (Spooner); nocturnal light (Superior); nocturnal light (Turtle Lake); sighting of lake monster (Monona Lake); nocturnal light (Janesville); nocturnal light (Kenosha); nocturnal light (Marshfield); nocturnal light (Mayhew); nocturnal light (Wausau)

1899 - find of 'Norse spearhead' (Pigeon Creek)

1906 - find of 'Norse axe' (Sawyer county)

1910 - 'bigfoot' sighting, 10-year old girl followed by hair-covered humanoid (Mirrow Lake)

1913 - disappearance (Kewaunee)

1917 - fall of anomalous meteorite (Colby)

1918 - find of ancient meteorite crater, diam.430m (Glover Bluff)

1919 - boy saw 20 small humanoids walking along side of road (nr. Barron)

1922 - sighting of phantom wolf (LaCrosse)

1929 - pillar found in limstone rock (Menominie); find of archaeological anomaly - horse skull, c.490 CE (Spencer Lake)

1930 - sighting of phantom elephant (Baraboo); (to present) - 'ghost light' (Kenosha)

1931 - archaeological site, 500-1000 CE (Sheboygan)

1933 - mystery attacks, 'Mad Gasser' (Mattoon)

1934 - UFO/daylight disc (Barron)

1943 - UFO/daylight disc (Palmyra)

1944 - mystery attacks, 'Mad Gasser' (Mattoon)

1945 - UFO/CE-3 (Pepin)

1946 - fall of lignite (Racine)

1947 - nocturnal light (Burlington); nocturnal light (Cudahy); UFO/daylight disc (Morrisonville); UFO/daylight disc (Okauchee); nocturnal light (Racine); UFO/daylight disc (Rockfield); UFO/daylight disc (Eagle); nocturnal light (Edgerton); UFO/daylight disc (Elkhorn); nocturnal light (Janesville); nocturnal light (Kenosha); fall of circular saw blade (Grafton); UFO/daylight disc (Green Bay); nocturnal light, 4 seperate sightings between June & July (Madison); UFO/daylight disc (Milton); nocturnal light, 4 seperate sightings between 6th and 7th July (Milwaukee); UFO/daylight disc (Stevens Point); nocturnal light (Sturgeon Bay); UFO/daylight disc (Waukesha)

1948 - nocturnal light (Burlington)

1949 - vision of BVM (Necedah); pictographs discovered (Mayville)

1950 - nocturnal light (Whitefish Bay)

1951 - nocturnal light (Algoma); UFO/daylight disc (Saint Croix Falls)

1952 - nocturnal light (Madison); UFO/Radar only (Osceola); nocturnal light (Racine); UFO/daylight disc (Sturgeon Bay)

1953 - nocturnal light (Darlington); nocturnal light (Monona); possible MIB (Racine); nocturnal light (Sturgeon Bay)

1954 - UFO/CE-2 (Chippewa Falls); UFO/daylight disc (Chippewa Falls)

1955 - disappearance (Madison)

1956 - UFO/daylight disc (Burlington); fall of web-like substance (Fond du Lac); skyquake (Milwaukee)

1957 - UFO/CE-1, multiple witnesses, silent, reddish, glowing disk, c.15 m in diameter, which flew 6 m above the ground at c.80km/h. Small, windowless cabin visible on the underside of the object (Ellsworth); nocturnal light (Ladysmith); UFO/daylight disc (Strum); UFO/daylight disc (Spooner); UFO/daylight disc (Stinnet); UFO/daylight disc (Westboro)

1959 - UFO/daylight disc (Iron Ridge); nocturnal light (Gills Rock); UFO/daylight disc (Walworth)

1960 - nocturnal light (Beloit); mystery plane crash (Muskego); UFO/CE-2 (Price county); nocturnal light (Sheboygan); archaeological site, c.500-1000CE (Lizard Mound State Park); archaeological site, c.6000 BCE (Comfort); find of petroglyhs (Vernon county)

1961 - UFO/CE-3, Joe Simonton (Eagle River); mystery plane crash (Hurley); UFO/daylight disc (Hurley); UFO/daylight disc (Sugar Camp); mystery plane crash (Waunakee)

1962 - nocturnal light (Beloit); mystery TV broadcast, 'KLEE-TV' (Milwaukee); nocturnal light (Stanley); find of underwater 'pyramids' (Rock Lake); 20-pound piece of steel fell from sky into street (Manitowoc)

1964 - UFO/CE-1 (Monticello); 'bigfoot' sighting (Delaven)

1965 - UFO/CE-2 (Chippewa Falls); nocturnal light (Racine); nocturnal light (Rio); UFO/CE-4 (Mason Lake)

1966 - nocturnal light (Black River Falls); UFO/CE-2 (Cameron); UFO/CE-1 (Durand); Two women saw glowing object on road. It hovered and showed two intense white lights, as well as a green and red light. Object was bowl-shaped, and they lost sight of it when they drove away. They saw it again later, flying low on a south-north trajectory (Sheboygan); UFO/CE-2 (Waukesha county)

1967 - nocturnal light (Appleton); UFO/CE-1 (Prairie du Chien); UFO/CE-1 (Ogema); nocturnal light (Delafield); UFO/CE-1 (Green Bay); nocturnal light (Green Bay); nocturnal light (Green Lake); mystery plane crash (Iron Mountain); nocturnal light (Stoughton); mystery plane crash (Monona Lake); UFO/daylight disc (West Allis)

1968 - nocturnal light, photo taken (Chippewa Falls); UFO/CE-2 (Cochrane); UFO/CE-2 (Mosinee); 'bigfoot' sighting (Deltox Marsh); UFO/CE-1 (Stoughton)

1969 - nocturnal light (Beloit); UFO/CE-1, car buzzed (Browntown); disappearance (Racine); nocturnal light (Janesville); mystery plane crash (Milwaukee); skyquake (Milwaukee)

1970 - 'bigfoot' sighting (Benton); nocturnal light (Monona); UFO/CE-1 (Madison); UFO/CE-4 (Madison); UFO/daylight disc (Madison); nocturnal light (Madison); UFO/CE-2, ground markings (Sturgeon Bay); nocturnal light (Sun Prairie); mystery plane crash (Wausau)

1971 - nocturnal light, 'kidney-shaped' (Eau Claire); UFO/CE-1 (Stevens Point)

1972 - UFO/CE-1 (Appleton); nocturnal light (Cecil); nocturnal light (Clintonville); nocturnal light (Montello); UFO/CE-2 (Morgan Sidings); UFO/CE-2 (Ogema); nocturnal light (Plover); UFO/CE-3 (Fort Atkinson); UFO/CE-2, with physical effects on witness (Gresham); nocturnal light, 3 seperate sightings in one year (Gresham); nocturnal light (Hortonville); disappearance (Janesville); UFO/daylight disc (LaGrange); disappearance (Milwaukee); nocturnal light (Shawano county); nocturnal light (Sparta); nocturnal light (Tigerton); UFO/CE-2, car engine failure (Waukesha county); nocturnal light (Waupaca); mystery plane crash (Winnebago Lake)

1973 - UFO/CE-4 (Omro); nocturnal light (LaGrange); UFO/CE-2 (Madison); UFO/CE-2 (Trade Lake); fall of ice (Wisconsin Rapids)

1974 - UFO/CE-3 (Antigo); find of 'Norse mooring stone' (Reedsburg); UFO/CE-3, entity sighted (Frederic); nocturnal light (Frederic); UFO/CE-1 (Lomira); archaeological site, c.CE 900 (Menasha); UFO/CE-1, 'flaming' (Stoughton); find of 'Norse runestone' (Watertown); find of ancient meteorite crater (Chippewa River); find of petroglyphs (Gullickson's Glen); 50-pound piece of hot metal fell from sky (Milwaukee)

1975 - UFO/CE-2 (Appleton); nocturnal light (Ashland); UFO/daylight disc (Bayfield); nocturnal light (Chippewa Falls); nocturnal light (New Berlin); nocturnal light (Patch Grove); UFO/CE-1 (Phillips); nocturnal light (Plain); cattle mutilation (Prairie du Chien); UFO/CE-1 (Durand); nocturnal light (Durand); cattle mutilation (Eastman); nocturnal light (Eau Claire); nocturnal light (Fennimore); 'humanoid' sighting, anomalous lights seen, with tracks photographed (Frederic); nocturnal light (Frederic); UFO/CE-1 (Greenfield); nocturnal light (Hayward); UFO/CE-1 (Lancaster); nocturnal light (Madison); nocturnal light, 'ball of fire', multiple witnesses (Mattoon); UFO/CE-2, object lands on road, multiple witnesses (Mellen); UFO/CE-1 (Milwaukee); nocturnal light (Milwaukee); nocturnal light (Sturgeon Bay); nocturnal light (Twin Lakes); UFO/CE-1 (Viroqua); UFO/daylight disc (Washburn); nocturnal light (Washburn); nocturnal light (Wausau); UFO/CE-3 (Wauwatosa); nocturnal light (Whitewater); UFO/daylight disc (Elkhart Lake); nocturnal light (Horseshoe Lake)

1976 - 'bigfoot' sighting (Cashton); UFO/CE-2, ground markings (Clam Falls); nocturnal light (Mount Pleasant); nocturnal light (Neillsville); nocturnal light (North Hudson); UFO/CE-1 (Orfordville); find of humanoid tracks (Saint Croix Falls); nocturnal light (Saint Croix Falls); nocturnal light (Dotyville); 'humanoid' sighting (Dresser); nocturnal light (Eagle River); nocturnal light (Gillett); UFO/CE-1 (LaCrosse); daylight disc (Lone Rock); nocturnal light (Madison); UFO/CE-3 (Malone); fall of coin (Milwaukee)

1977 - nocturnal light (Palmyra); nocturnal light (Park Falls); nocturnal light (Platteville); cattle and horse mutilations (Eagle Point); nocturnal light (Genesee); humanoid sighting (Medford); nocturnal light (Walworth); UFO/CE-3 (West Jacksonport)

1978 - Nocturnal light (Brookfield); sighting of kangaroo (Brookfield); nocturnal light (Burlington); nocturnal light (Cumberland); nocturnal light (Monroe); nocturnal light (Osceola); UFO/CE-1 (Park Falls); nocturnal light (Rhinelander); nocturnal light (Delaven); nocturnal light (Dresser); nocturnal light (Fond du Lac); UFO/daylight disc (Footville); nocturnal light (Juda); nocturnal light (Kenosha); nocturnal light (Kronenwetter); cattle mutilation (Lincoln county); UFO/Radar-visual (Madison); nocturnal light (Menasha); nocturnal light (Middleton); nocturnal light (Somerset); UFO/CE-2 (Spooner); nocturnal light (Twin Rivers); nocturnal light (Wausau); nocturnal light (Sherwood Lake)

1979 - nocturnal light (Monona); UFO/CE-1 (Wautoma)