There weren't. There were empires and kingdoms, not countries. The world didn't work that way.
Because it is still the day that Jesus was born and Jesus is a prophet.
It would be diffiuclt to identify a country that doesn't have something similar to Veterans' Day. It has many different names and is celebrated on different days in different countries.
Jesus was buried in Jerusalem. On the third day he arose and appeared to different deciples at different times. Among many witnesses, he arose to heaven and an angel told the witnesses that this same Jesus would one day return again.
Different countries have different laws.
Countries that were part of Englands empire I think?
jesus blessed many people with the gospel each day!
Children's Day is celebrated on different days in different countries.
International Workers' Day is an international holiday, which is celebrated in many countries on May first (May Day) of each year. It is a day when demonstrations are sometimes organized in different countries by labor organizations.
Different countries observe Father's Day on different dates.
There are different days that different countries have Mother's Day!
January 6th is Old Christmas Day. Old Christmas Day is another name for Little Christmas. Many different countries have different names for Little Christmas or Old Christmas Day.
Different countries have different approaches to this.