1840....
First white settlement commenced in Millmerran area at Tummaville.


C1851....
First cotton crop grown in what was later to become Millmerran Shire at Yandilla Station.

1867....
First mail service commenced through Yandilla.

1877....
All Saints Anglican Church built at Yandilla.

1881....
Edward Walpole, occupier of lease portion 3460, 1280 acres on Back Creek and commences Millmerran's first commercial enterprise with a store to serve selectors. The town of Millmerran commences.

1882....
First School, Yandilla Provisional School, opens at Back Creek.

1889....
Back Creek changes name to Domville.

1894....
Domville changes name to Millmerran.

1902....
First car to visit Millmerran.

1910....
First Bank, Queensland National, opens in Millmerran.

1913....
Millmerran Shire proclaimed a Local Government Authority. First Shire Office, now the Historical Society and Museum, opens.

1914....
Telephone exchange opens in Millmerran.

1920....
First plane lands in Millmerran by Lieutenant McComb.

1921....
War Memorial unveiled in ANZAC Memorial Park.

1922....
Ted Pimm commences carrying business with team of horses.

1923....
Present Millmerran State School opens.

1924....
First Agricultural, Pastoral, Horticultural and Industrial Show inaugurated.

1932....
Bringalily Land Ballot opens.

1936....
Millmerran Diary Co-op Association Butter Factory opens.

1947....
First electric lighting to houses and streets in Millmerran.

1952....
Present day Millmerran Hospital opened.

1960....
Millmerran State High School opened.

1961....
Underground water distribution system installed.

1966....
Millmerran Swimming Pool opened.

1968....
Millmerran Butter Factory closed.

1984....
Millmerran Centenary Retirement Village, Yallambee, opens.

1992....
Gore Highway officially declared between Goondiwindi and Toowoomba via Millmerran.

1998....
First of the historic muralscreated on the Shire's Water Supply & Pumping Station in Millmerran.

1999....
Inaugural Australian Camp Oven Festival held on 2nd & 3rd October.

2003....
Millmerran coal fired Power Station construction completed.

2008....
Amalgamation of Millmerran, Pittsworth, Jondaryan, Crows Nest, Cambooya & Rosalie Shire Councils and Toowoomba City Council to become Toowoomba Regional Council.