However,the Orthodox Church in America says most of its members follow the revised Julian calendar and celebrate on December twenty-fifth.

VOA: special.2009.12.21

Orthodox Christmas is observed on January seventh, based on the Julian calendar.

VOA: special.2009.12.21

By comparing rings from different trees and with other historical data, you can often identify particular rings with the exact calendar year that they grew.

VOA: standard.2010.04.05

The Laureus awards are widely regarded as the premier honors on the international sporting calendar and nominees are selected by leading sports journalists in over 100 countries.

VOA: standard.2010.02.11

"We were able to match up the narrow and wide rings exactly so that we can assign the exact calendar dates to the exact rings of every tree."

VOA: standard.2010.04.05

We controlled for other well-known fixed calendar (we call them Gregorian anomalies), notably,day of the week effect, like Monday,January effect, Halloween effect, and none of those factors explained results.

VOA: standard.2010.08.05