Magnetic compasses were invented during which era?

Here is the question :

MAGNETIC COMPASSES WERE INVENTED DURING WHICH ERA?

Here is the option for the question :

Middle Ages
Roaring 20s
Middle Ages
Roaring 20s

The Answer:

And, the answer for the the question is :

Middle Ages

Explanation:

[STC0019024]. The magnetic compass was most likely invented in China in the 11th century. One of the earliest recorded mentions of the innovation dates back to 1044, when troops used a navigational gadget made of magnetised iron that floated in a bowl of water. In the 12th century, the technique made its way to Europe.