1) The development of the microprocessor by Intel in 1971 paved the way for the modern computer and led to the exponential growth of computing power.

2) The book series "The Chronicles of Narnia" by C.S. Lewis has sold over 100 million copies worldwide.

3) The Alps, located in Europe, are a popular destination for skiing, mountaineering, and hiking.

4) Norse mythology, originating from the Scandinavian region, features gods and mythical creatures like Odin, Thor, Loki, and Valkyries. It explores themes of heroism, destiny, and the battle between gods and giants, with intricate tales recorded in texts such as the Prose Edda and Poetic Edda.