1) The term "cloud computing" refers to the delivery of computing services, including storage, databases, and software, over the internet rather than on a local server.

2) The concept of 3D printing, also known as additive manufacturing, was first introduced in the 1980s and has since revolutionized prototyping and small-scale production.

3) The discovery of the Americas by Christopher Columbus in 1492 opened up new trade routes and had a profound impact on world history.

4) Mount Everest, located in the Himalayas, is the highest mountain on Earth, reaching a peak elevation of 29,032 feet (8,848 meters).