How about year? In Serbian we write 1875. - with dot. I saw that in Turkish you write year without dot. I also saw that after Roman number you write dot e.g. I. Ahmed, which is in Serbian very wrong. I know that Turkish is not Serbian, though :) Just asking :) And do you write languages like this türkçe or Türkçe? Same question for months, days of the week. :)
Ajde bre da pijemo rakiju!
Years are written without a dot.
When you write a dot, it acts like -th. For example 5. is read as beşinci (fifth). The Roman numerals used in your example are also read as Cardinal numbers, that's why the dot is used. We read Birinci Ahmet, (not Bir Ahmet).
Language names are capitalized: Türkçe, Sırpça.