1) The world's first paper money was created in China over 1,000 years ago.

2) The concept of political stability refers to the ability of a government or political system to maintain continuity, order, and effective governance over a prolonged period, promoting social cohesion and economic development.

3) The term "bull market" refers to a period of rising stock prices, while a "bear market" refers to a period of falling stock prices.

4) The Great Barrier Reef in Australia is the largest coral reef system in the world and is visible from space.