Question

the first country to be written its date

Answer 1

Basic components of a calendar date for the most common calendar systems:

Y – yearM – monthD – day

Order of the basic components:

B – big-endian (year, month, day), e.g. 1996-04-22 or 1996.04.22 or 1996/04/22L – little-endian (day, month, year), e.g. 22.04.1996 or 22/04/1996 or 22-04-1996 or 22 April 1996M – middle-endian (month, day, year), e.g. 04/22/1996 or April 22, 1996

Specific formats for the basic components:

yy – two-digit year, e.g. 96yyyy – four-digit year, e.g. 1996m – one-digit month for months below 10, e.g. 4mm – two-digit month, e.g. 04mmm – three-letter abbreviation for month, e.g. Aprmmmm – month spelled out in full, e.g. Aprild – one-digit day for days below 10, e.g. 2dd – two-digit day, e.g. 02"ddd" - three-letter abbreviation for day, e.g. Tue"dddd" - day spelled out in full, e.g. Tuesday

Separators of the components:

"/" – stroke (slash)"." – dots or full stops (periods)"-" – hyphens or dashes" " – spaces