Thaddeus Daniel Pierce was born on July 26, 2025, in Ohio, United States, setting a new world record as the baby born from the longest-frozen embryo. The embryo was originally created and frozen in 1994, remaining in storage for approximately 30.5 years before resulting in a successful live birth. The embryo was one of four created in 1994 and was donated through a Christian agency specializing in embryo adoption. The couple, Lindsey and Tim Pierce, welcomed their son after years of infertility struggles. This case highlights advances in embryo preservation, assisted reproductive technology, and adoption practices. The previous record for the longest embryo frozen before birth was held by twins born in 2022 from embryos frozen in 1992.