The term "131st" typically refers to the ordinal number that comes after 130 and before 132. It can be used in various contexts, such as ranking, numbering, or identifying a specific position in a sequence. For example, it might denote the 131st day of the year or the 131st item in a list. In historical contexts, "131st" can refer to specific events or organizations, such as the 131st Infantry Regiment or the 131st Congress of the United States. These references highlight the significance of the number in military or legislative history, respectively.