A "Gentleman's Agreement" is an informal, non-binding agreement between parties, often based on trust and mutual understanding rather than legal obligations. These agreements are typically used in situations where formal contracts may be impractical or unnecessary, relying on the integrity of the involved parties to uphold their commitments. Historically, the term gained prominence in the early 20th century, particularly in the context of racial discrimination, such as the Gentlemen's Agreement of 1907 between the United States and Japan. This agreement aimed to limit Japanese immigration to the U.S. while addressing tensions between the two nations, highlighting the complexities of diplomacy and social issues.