60th

60th is the ordinal form of the number 60, used to indicate a position in a sequence, a rank, or an order in lists, dates, events, and commemorations. It marks what comes after the 59th item and before the 61st.

In calendars and anniversaries, the 60th designation appears in contexts such as birthdays and anniversaries. A 60th birthday marks six decades of life, while a 60th anniversary is commonly associated with the diamond anniversary in traditional gift lists.

Geographically and temporally, 60th appears in several standard references. The 60th parallel north and the 60th parallel south are lines of latitude. The 60th day of the year is February 29 in leap years, giving it an occasional, recurring position in the calendar.

In science and government, the term can denote specific items or periods. The element with atomic number 60 is neodymium (Nd). Historical references include the 60th United States Congress (1907–1909) and the 60th Academy Awards, held in 1988, among other formal enumerations of events, sessions, or editions.

Beyond these, 60th is used whenever a sequence or ranking requires a precise ordinal label. It functions as a generic descriptor in diverse domains, including mathematics, geography, culture, and institutions, reflecting its role as a standard numeric ordinal.