No - see http://en.wikipedia.org/wiki/Arbor_Day
No, it can vary from year to year.
no
In Canada and US Labor day is celebrated on the first monday of September and in most of the other countries it's on 1st May.
No, Christmas is not celebrated at the same time around the world. While most countries celebrate Christmas on December 25th, some Eastern Orthodox churches celebrate it on January 7th due to differences in calendar systems. Additionally, some countries may not traditionally observe Christmas as a holiday.
Ramadan is the same around the world. It ended September 10th, 2010. Some celebrated it September 11th 2010.
Not exactly. A degree from U of M in Ann Arbor is more prestigious. The classes in Ann Arbor are harder and generally of better quality. A degree from the Dearborn campus is still impressive but does not hold the same weight as one from Ann Arbor.
Valentine's Day is celebrated on February 14 in many places around the world, but not everywhere. For example, Brazil celebrates their "Lover's Day" in mid-June.
"Rose Tonnelle": rose comes from french, so it's the same. tonnelle means arbor.
Exactly the same as all over the world.
boo why look for the answer
No, New Year is the most celebrated holiday, although it may not be on the same day for everyone.
They are all celebrated around the same time!