Bazı ülkeler bin yıllık dönemi saymak için sıra numaralarını kullanırken, diğerleri asıl sayıları kullanarak sayarlar.
- Some countries use ordinal numbers to count millennia, whereas others count them using cardinal numbers.
The most common numerals in Latin, as in English, are the cardinals...and the ordinals... — F. M. Wheelock, Wheelock’s Latin, 6th ed. revised (2005), p97.
Example: first in first attempt.
In the expression a3, the 3 is an ordinal number.
First, second and third are the ordinal numbers corresponding to one, two and three.