Connecticut General adopted the name Cigna when it merged with INA in 1982.
Connecticut General Life Insurance Company and the Insurance Company of North America, commonly called INA, combined in 1982. The new corporate identity used the name Cigna, formed from elements of the two predecessor names: CG and INA. The merger created a large insurance organization with roots reaching back to the 18th and 19th centuries.
INA traced its origins to Philadelphia in 1792 and is often described as the first stock insurance company in the United States. Connecticut General was founded in 1865. Their combination therefore joined two historically significant American insurance businesses rather than creating a company with no earlier identity.
Cigna later became particularly associated with health insurance and related services, although its business activities and corporate structure have changed over time. The name should not be confused with Aetna, another major U.S. insurer whose corporate history is separate.