First off, the protestant reformation’s main cause was Martin Luther, nailing the “95 Theses” on a church door in 1517. overall, it was basically a call to purify the church and a belief that the Bible, not tradition, should be the sole source of spiritual authority
the articles of confederation was a very weak constitution for the government
Greece is a crossroad of cultures, it is in Europe, but also it is near Egypt and the East. So it had a big exchange of ideas and philosophy, it developped science and trade, and being surrounded by the sea, it developped maritime skills (military and trading fleet). This lasted form antiquity to modern history.
