Money has always been around us in one form or another. Although it is true that the ancients didn’t have printed notes like we have but the fact is undeniable that they were involved in commerce. In other words, they had a sense of money. Moreover, because trading among humans is so old that it would be impossible to find out the person who could have proposed the concept of money.
The Chinese, one of the oldest civilizations, were the first to introduce paper money similar to our bank notes back in the 7th century. They called their bank notes ‘jaozi’. Jaozi didn’t immediately replace bartering but they were used alongside other commodities. Coins of gold and silver were used before this event but they were more like commodity money (like cows, pigs etc.) and less like the money of today in essence. The royal stamps on the coins ensured purity of the coins.
> Mauna Loa in Hawaii is the highest volcano on Earth. It rises about 4 kilometres above sea level; below that, it extends to 5 kilometres down before it reaches the seabed. Its massive weight has pushed the volcano down a further 8 kilometres below the seabed! So Mauna Loa is 17 kilometres (56,000 feet) from its base to its summit.
> The Pacific Ocean is the world’s largest and deepest ocean. It has an average depth of over 4,000 metres (13,100 feet). It has the world’s deepest trench – the Mariana Trench near Japan. The Challenger Deep in the Mariana Trench is the deepest point on Earth– about 11,033 metres (36,200 feet) deep.
> The Nile is the longest river on Earth. It flows for 6,695kilometres (4,184 miles).
> All the planets rotate from west to east on their axes, apart from Venus, which spins in the opposite direction. On the surface of Venus, the Sun appears to rise in the west and set in the east. The planet might have been hit by a huge space rock, reversing the direction of its spin.
> All the planets are named after Roman gods. Venus is named after the Roman goddess of love. The surface features of Venus are also named after various goddesses.