1181
"a" and "the" are not adjectives. These are examples of what we call article(s).
1181 ft = 359.9688 metres, near enough 360 m
We only know that he was born in either 1181 or in 1182.
Francis was born either in 1181 or 1182 but the day and month are not known.
Examples: an article in a shop, an object in a catalog, a mechanical part, etc.
MCLXXXI
Passions - 1999 1-1181 was released on: USA: 24 February 2004
The US was not a country in 1181. Post a new question with the date, mintmark( if there is one), and condition of the coin.
Ulm was created in 1181.
No. The word "a" is an article. It is an indefinite article, along with "an," that refers to any of the examples of a group, set, or range of concepts.
You will find some examples in the Wikipedia article on "Polish language".