The ordinal numbers erste, zweite, dritte ...

define a specific position in a sequence.

The ordinal numbers are also used to formulate the date.

More information on the use of ordinal numbers to formulate the date can soon be found in the learning module "Numbers in Use".

The ordinal numbers stand ...

mostly before a noun and they are declined like an adjective.

More information about adjective declination can soon be found in the learning module "Adjective Declination".

When ordinal numbers are ...

written as digits, there is a dot behind the digit.