Mathematics is considered as the mother of all sciences because it is a tool which solves problems of every other science. Other subjects like biology, Chemistry or Physics is based on simple chemical solutions.

1. London. As the “capital of capitals” negotiates the uncharted terrain of a post-Brexit world, for now it still reigns atop the planet’s best cities for the fifth year running.
2. New York. America’s urban heart was broken by the pandemic and has a long way back.
3. Paris.
4. Moscow.
5. Tokyo.
6. Dubai.
7. Singapore.
8. Barcelona.

Sumerian civilization

Here are 10 of the oldest, continuously inhabited cities in the world today.

• Aleppo, Syria.
• Beirut, Lebanon.
• Jericho, West Bank.
• Byblos, Lebanon.
• Athens, Greece.
• Plovdiv, Bulgaria.
• Sidon, Lebanon.
• Faiyum, Egypt.

Plovdiv

Byblos, a once groovy Mediterranean resort in Lebanon, is possibly the first Phoenician city, founded in 7000BC – not as old as Jericho, maybe, but at least it can claim continuous habitation since 5,000 BC. Damascus was once a (largely) undisputed shoo-in for oldest city.

St. Augustine

Delaware

Stone Wall at Theopetra Cave The stone wall at the entrance of Theopetra Cave in Greece is the oldest ruins in the world – it is believed to be the oldest man made structure ever found.

The 20 Oldest Cities in the United States

1. St. Augustine, Florida – 1565.
2. Jamestown, Virginia – 1607.
3. Santa Fe, New Mexico – 1610.
4. Plymouth, Massachusetts – 1620.
5. New York City, New York – 1624.
6. Quincy, Massachusetts – 1625.
7. Boston, Massachusetts – 1630.
8. Colonial Williamsburg, Virginia – 1638.