The date 09-21-2008 can be represented by the Roman numerals IX.XXI.MMVIII
mmx11
(Assuming that this is the 2nd June 1991) II.VI.MCMXCI
5'1" is a perfectly good - although out-of-date way of doing it.
二〇一一年 is in a date format (Two, zero, one, one = 2011) if in a numeric format is it: 两千十一 (Two thousand, eleven)
date structures
Alphanumeric refers to a grouping of letters and numbers. Some examples of alphanumeric values might be "123ABC" or "Q87H9." Even writing out an entire date would constitute an alphanumeric entry.
Year-Month-Day
07/18/1992
A date
By converting the numerical day, month and year to their Roman numeral equivalents. E.g., 25th June, 2012 would be XXV. VI. MMXII.
Yes you can for example:1/2/3=I/II/III
The Date 02/10/1992 would be written as: II/X/MCMXCII