MapInfo Pro converts two-digit input into four digit years using the current century for the dates (so that 14 becomes 2014). If your data includes dates in the 1900s, then you can turn on date windowing to select a pivot year below which to use the previous century. If you specify the number 50 as the pivot year for your data, then the years entered as 00-49 become 2000-2049 and years entered as 50-99 become 1950-1999.
To turn on date windowing:
If you select the Turn date windowing off option, then MapInfo Pro uses the current century for two-digit dates.