When people speak they often try to use the fewest words or syllables. When we say the years we try to use the expression that has the fewest syllables: 1500 = one thousand five hundred = 6 syllables 1500 = fifteen hundred = 4 syllables 2000 = twenty hundred = 4 syllables 2000 = two thousand = 3 syllables 1957 = one thousand and fifty seven = 8 syllables 1957 = nineteen fifty seven = 6 syllables And, that's the answer... :)

You say fifteen hundred