1723 – French explorers arrive on the Missouri River
January 1, 1723
May 26, 1804 – The Lewis and Clark Expedition pass by the present day location of New Haven.
May 26, 1804
1819 – The Independence, the first steamboat on the Missouri River, travels upstream.
January 1, 1819
1836 – Philip Miller establishes a woodlot for steamboats along the Missouri River. Miller’s Landing is founded. (Later to be named New Haven)
January 1, 1836
1830’s – Large numbers of German immigrants begin arriving and settling in the New Haven area.
January 1, 1837
1855 – Construction of the Pacific Railroad reaches Miller’s Landing.
January 1, 1855
1856 – Founding of New Haven
January 1, 1856
October 3, 1864 – Confederate troops raid New Haven and burn the depot.
October 3, 1864
1883 – A new two-story grade school is built on Maupin Avenue.
January 1, 1883
May 9, 1884 – The Board of Aldermen adopt ordinances formalizing government in New Haven.
May 9, 1884
October 4, 1894 – A fire in downtown New Haven destroyed the city jail, nine businesses, and a residence.
October 4, 1894
1903 – New Haven High School was established. Classes were held in a two room addition to the grade school on Maupin Avenue.
January 1, 1903
1903 – A major flood on the Missouri River damaged homes in the downtown area of New Haven.
January 2, 1903
1925 – With the growth in high school enrollment, a separate high school building was constructed adjacent to the grade school.
January 1, 1925
1955 – The Corp of Engineers completed construction of a levee around the downtown area of New Haven.
January 1, 1955
September, 1956 –Residents celebrated the centennial of the founding of New Haven.
September 1, 1956
1956, 1957, 1958, 1959 – New Haven High School wins four consecutive state basketball championships.
January 1, 1959
October, 1962 – New Haven voters pass a bond issue to acquire land for the establishment of a city park.
October 1, 1962
1964 – A new high school is built in the city park area.
January 1, 1964
1984 – Land is acquired on the corner of Miller Street and Elton Avenue for the construction of a new elementary school.
January 1, 1984
September 20, 1988 – the New Haven Preservation Society is formed to preserve the old school on Maupin Avenue.
September 20, 1988
December 1988 – First annual candlelight Christmas House Tour in December, 1988.
December 1, 1988
1991 – The old school building was purchased for $10,000.
January 1, 1991
1999 – The New Haven Historic Preservation Society helped the city apply to have eight buildings placed on the National Register of Historic Places.
January 1, 1999
2001 – The City of New Haven completes construction of a ¼ mile scenic river walk trail along the downtown levee.
January 1, 2001
2004 – The John Colter Memorial and Museum is opened in downtown New Haven.
January 1, 2004
May 26, 2004 – On the bi-centennial of the Lewis and Clark Expedition the community welcomed the arrival of the expedition reenactors along the riverfront in downtown New Haven.
May 26, 2004
