1871 - William W Hays moves to the area we now know as Haysville.
1874 - Grist mill was built on bank of the Cowskin.
1876 - First schoolhouse was built on Nelson property south of 71st street.
1891 - August 1st - Hays platted the land he owned so a town could be built.
1903 - Train depot is opened.
1904 - First telephone service (Oatville Rural Telephone Company).
1914 - Blacksmith shop opened.
1919 - The "Red brick" schoolhouse was built at 79th & Seneca.
1921 - First water tower built.
1948 - Hemphill school built (west wing).
1951 - July - Haysville is incorporated. East wing Hemphill school built.
1954 - Nelson school built.
1956 - Oatville school built.
1958 - Rex school built.
1960 - Campus High School built.
1962 - Freeman school built. Haysville Jr. High built.
1991 - April 26th - Tornado clips west edge of Haysville (Timberlane addition).
1998 - June 8th - Deadly explosion at Debruce grain elevator northwest of Haysville.
1999 - May 3rd - Deadly F4 tornado hits Haysville following the railroad tracks through town. May 5th -Vice President Al Gore visits Haysville to view the damage.
2000 - Ruth Clark Elementary School opens.
2003 - Construction begins on railroad overpass.
2005 - Construction ends on Grand street railroad overpass.
2007 - Prairie Elementary School opens.
2008 - August 13th - Haysville West Middle School opens.
2009 - January - Karla street opens at railroad overpass.
2009 - New Library opens.