Anycast allows multiple, identical, globally deployed DNS servers to advertize the same IP address. For all intents and purposes, the same server exists in dozens or hundreds of places simultaneously. When an Internet user looks up your domain name, they find the Anycast instance topologically closest to themselves. Usually, there's a correlation between network topology and physical geography.
The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in about 4000 BCE. The discovery of smelting around 3000 BCE led to the start of the iron age around 1200 BCE and the prominent use of iron for tools and weapons.
When they did make it 5000 years ago â¦ , they would hit the iron against a rock to form the shape that was needed. But during 1200 BC they would put it in a fire just to get it hot enough so that if they hit it with a hammer, it could take a shape. They got iron from digging it up just like we do today.