Alphabet

Albanian has been written with many different alphabets since the 15th century. Originally, the Tosk dialect was written with the Greek alphabet and the Gheg dialect was written with the Latin alphabet. They have both also been written with the Ottoman Turkish version of the Arabic alphabet, the Cyrillic alphabet, and some local alphabets.
The modern Albanian alphabet was standardised in 1909, and is based on the Latin alphabet, with the addition of the letters ë, ç, and nine digraphs.

References

Encyclopædia Britannica, edition 15 (1985). Article: Albanian language
Huld, Martin E. Basic Albanian Etymologies. Columbus, OH: Slavica Publishers, 1984.
Martin Camaj, Albanian Grammar, Otto Harrassowitz, Wiesbaden
Orel, Vladimir. A Concise Historical Grammar of the Albanian Language: Reconstruction of Proto-Albanian. Leiden: Brill, 2000.