66th
66th is the ordinal form used to indicate the sixtysixth item in a sequence. It functions as a positional descriptor in a wide range of contexts, from geography and politics to culture and the military. In English, ordinals are formed by attaching the suffix -th to the cardinal number, so 66 becomes 66th.
Common uses include: geographic designations like 66th Street or 66th Avenue, which mark a place's position
In the military, units, formations, and battalions are often numbered, including references to the 66th Division,
In culture and media, the 66th edition of a competition or award ceremony is a common label;