Template:CT Vital Intro
Birth, marriage, and death records were kept by each town clerk. These are described further in Connecticut Town Records.
Many of the births, marriages, and deaths recorded in town records have been extracted and are part of the database that can be searched by name on the home page of FamilySearch. The former International Genealogical Index (IGI) is part of this.
A copy or an extract of most original records can be purchased from the Connecticut Vital Records State Department of Health or the Town Clerk's office where the event occurred.