1865
- January 24
- Steam fire engine arrives, (the first in New Zealand) and is named "Extinguisher".
- February
- Gold discovery on the West Coast leads to an inevitable exodus of prospectors from Christchurch.
- March 1
- Godley Head lighthouse in operation.
- April 8
- First issue of "Punch in Canterbury". It was modelled on the English magazine, but did not survive for long.
- May 3
- First Catholic school opens in a small cottage in Lichfield Street.
- May 21
- First news telegram sent over the new line from Bluff to Christchurch.
- July 1
- Severe thunderstorm. Man killed by lightning at Avonside.
- July 1
- Lyttelton Harbour breakwaters begun.
- September 19
- South Island Separation Bill defeated in Parliament by 31 votes to 17.
- November 21
- Provincial Council buildings in Durham Street completed. The complex of buildings was architect B.W. Mountfort’s masterpiece. He had survived a professional disaster soon after arrival in New Zealand when his first building, a church in Lyttelton, had proved structurally unsound and had to be demolished.
- November 30
- Canterbury Medical Association formed (the first in New Zealand).
- (no date)
- Railway to the west and south begins.
- First public swimming pool opens at Kohler’s Pleasure Grounds (now the site of Hagley High School).
- P.and D. Duncan’s engineering works established.