Main date format used in research pages is YYMMDD.
This is a brief background ...
In mid 2002, I began a personal research about computers. My main objective was to acquire a comprehensive perspective on the evolution of the Internet.
I started to gather information in Microsoft Word documents and by August of 2002, I had a small collection of documents dated from 1997 to 2002.
I noticed that a Word document wasn’t the most flexible media to organize the information, hence, I began to gather my research in HTML documents.
In 2003, I decided my research needed the inclusion of many topics unrelated to the Internet and its yearly coverage had to be much earlier than the mid 1990s ...
See: BSD, Linux, Unix and The Internet - Research by Kenneth R. Saborio.
See also: Unmanned Aircraft & Drones - Research by Kenneth R. Saborio.
Thank you for your interest,