Answer:

mcci

Answer	Crossword Clue
MCCI	13th-century date
MCCI	1201, to the Romans
MCCI	1201, to Tiberius

MCCI	Start of the 13th century
MCCI	Fourteen years before Magna Charta.
MCCI	14 years before Magna Charta.
MCCI	Second year of King John's reign.
MCCI	Fourteen years before Magna Carta.
MCCI	Year during the Dark Ages.
MCCI	Year preceding the Fourth Crusade.
MCCI	Year before the Fourth Crusade.

MCCI	Latin 1201
MCCI	Beginning of the XIII century
MCCI	Thirteenth-century starter
MCCI	14 years before the Magna Carta
MCCI	Turn-of-the-century year in King John's reign
MCCI	1,201, to Tiberius
MCCI	1201, in Roman numerals
MCCI	1201 to Livy