HH Permanent Calendar

ir redzēti visdažādākie kalendāri, bet šis ir diezgan interesants risinājums... (imho)
http://henry.pha.jhu.edu/calendar.html
http://henry.pha.jhu.edu/ccct.calendar.html
papildus lasāmviela
http://www.spacedaily.com/reports/Time_for_a_Change_Calendar_Overhaul_Proposed_999.html
http://www.cato.org/pub_display.php?pub_id=13940
http://henry.pha.jhu.edu/calendar.html
http://henry.pha.jhu.edu/ccct.calendar.html
papildus lasāmviela
http://www.spacedaily.com/reports/Time_for_a_Change_Calendar_Overhaul_Proposed_999.html
http://www.cato.org/pub_display.php?pub_id=13940