This text was found in Bolu, Turkey, at my uncle's house. What language is it written in?
I'm fairly sure that the language is Armenian. For example, the second word on the top line is միշտ (mishd) meaning "always", and the fourth line has the words քեզ (kez) "you" and մարդ (mard) "man".
I'm not fluent enough in Armenian to easily decipher the whole text, but the final line appears to read "January 1861".
This is Armenian. I'm failing to translate whole text, though it's not a dialect, on the contrary, it seems to me to be a literary language, quite standard, it's just that I'm failing to understand 10% (or to read, some letters are unclear) of words, but this is 100% Armenian.
Some words I understand but never heard in that form (like "ջուրիկ խըմելու"). Still, it's Armenian.