1829
Alexander Cochran, the first white man to set foot in Caribou came looking for a mill site.
1839
The almost Aroostook war almost took place.
c. 1840
Warren Drake ran the first Ferry across the Aroostook River.
1845
A bridge was built across the Caribou stream at the Collins and Vaughan Grist Mill on South Main Street.
1852
The first real schoolhouse was built and the first teacher was Miss Mary Fowler, daughter of Deacon E.S. Fowler.
1855
The first store was built by the Messrs.-S.W. Collins, and W.A. Vaughan.
1855
The first road in Caribou was Water Street. Which started at Cochran’s Grist Mill and went to the Aroostook River.
1857
A little one room schoolhouse was built at a cost of $375.00 where now stands the Sincock School, and was also used for church services and meetings of all kinds.
1858
A Sash, Blind and Door Factory was built on Washburn Street. And was considered to be very important to the area for well over 50 years.
Aaron Milton York came to Caribou from Bethel, Maine. He lived here 50 years. He built more buildings than any other contractor or builder in this time or since in Caribou and vicinity.
The first Newspaper printed in Caribou was called the North Star, and was started by the Rev. Mr. Sleeper.
1859
April 5th, Township letter H became the town of Lyndon.
1860
The population was 297.
The first Vaughan House was built.
The first photographer came to town, Henry Walker Allen, from Boston.
c. 1863
The first Brass Band was organized.
1867
The first Church was built in the town of Lyndon and it was called the Union Church.
1877
The village of Lyndon officially changed its name to Caribou.
1886
The first High School was started with 80 pupils, quite well out on Sweden Street.
1887
The first Electric Light Company was organized.
1889
The Aroostook River Dam and Water Works was built for 100,000.
1890
The first Bank, the Aroostook Trust Company.
1891
The town built on High Street their first High School building.
Fire destroyed the wooden bridge across the Aroostook River, the fourth wooden bridge that burned.
1892
The first steel bridge was built.
1893
The White Mountain Telephone Company started operating in Caribou.
1895
Bangor & Aroostook Railroad ran its first regular train into Caribou.
1911
The Caribou Public Library was built.