The common noun in your sentence is 'holidays'.
Langley Park is a proper noun because it is the name of a specific park.
The first name of Langley is typically "John," as in John Langley, a common reference in various contexts. However, without additional context, it's important to note that "Langley" could refer to different people or places, so the first name may vary accordingly.
they are all holidays and celebrated worldwide.....
French Holidays are very similar to your own. During French Holidays, the French have common practices that include family dinners, exchanging gifts, travel and family traditions.
Some people do childcare on holidays but most do not, it is like a vaccation day to some.
Yes, like crowded, it is a relative adjective. It refers to having more objects or organisms than the optimum for a given area or volume.
The correct phrase is "happy holidays" without an apostrophe. "Happy holidays" is a common greeting used to wish someone well during the holiday season.
halloween,christmas, and easter.
cooked
Poorly aligned or crowded teeth with no overbite or underbite.
The noun 'holidays' is a common noun, a general word for a period of freedom from work; days of celebration or remembrance; periods of relaxation; a general word for any holiday of any kind.Examples of nouns for holidays that are common nouns are vacation, carnival, celebration, etc.The names of specific holidays (such as Independence Day or Holiday Inn) are proper nouns.A proper noun is the name or title of a specific person, place, or thing.The name of a holiday is the name of a specific thing.
There are many countries in Europe and each would have their own special holidays that would not be the same as other countries in Europe. There would also be some common holidays like Christmas.