The term "129th" can refer to various entities, such as military units, legislative districts, or events. For example, the 129th Infantry Regiment is a unit in the United States Army, known for its service in various conflicts. Additionally, the 129th Congress refers to a specific session of the United States Congress that took place from 1985 to 1987. In sports, "129th" can denote rankings or positions in competitions. For instance, a player finishing in the 129th position in a tournament may indicate their performance relative to other competitors. Overall, "129th" serves as a numerical designation across different contexts.