DAY 416

What do the following numbers have in common?

200
600
1001
1050
1100
1500

Answer:

Each number, in Roman Numerals, is a familiar abbreviation:

200 - CC  (cubic centimeter)
600 - DC
1001 - MI  (Michigan)
1050 - ML  (milliliter)
1100 - MC  (emcee)
1500 - MD