Can some one tell me about seasons?

Question

When spring, summer, autumn & winter starts. Detailed specifically for Europe. Thank you for your support. I like if you mention the source but feel free.

Answer 1

For Europe, spring will begin on March 21 in 2007. That, however, will be the last time until 2102. (http://www.space.com/spacewatch/050318_e...

First day of summer is timed with the summer solstice. For most of the United States, summer begins on June 20. In Europe it’s June 21.

(http://www.thepicky.com/tag/europe/)

i didn't have time for the other two. sorry... maybe later