***** NOT A TEACHER *****
Hello, Ademoglu:
May I add my two bits? (very humble opinion)
1. The "correct" arrangement is "Harold Bloom, the literary critic, was born in 1930."
2. Then -- as Roman alluded to in his post -- an American newsmagazine in the 1920's felt that such a sentence was too formal.
The magazine wanted SNAPPY writing. The arrangement in #1 was felt to be too BORING!
3. So it simply changed "The literary critic" to a TITLE: "Literary critic Harold Bloom was born in 1930." Some people even today feel that such a sentence is too "newspaperish."
4. Some people feel that "The literary critic Harold Bloom was born in 1930" is fine.
5. The bottom line:
a) In formal writing, you might consider #1 or at least #4.
b) You should reserve #3 for those times when you want your writing to be "snappy" (that is, NOT formal and NOT boring).
(i) Why say "Jackie Chan, the Hong Kong action star, will be visiting us" or "The Hong kong action star Jackie Chan will be visiting us" when we can simply say that "Hong Kong action star Jackie Chan will be visiting us"? In the world of journalism, it is necessary to grab people's attention quickly.
James