What are some of the most important inventions from the Middle Age?

6. The hourglass was a great way of keeping time

The hourglass first appeared in Europe in the 8th century AD, however, there is little evidence of its use there until the early 14th century, when it first began appearing in European ship inventories. It was likely first used on ships because the bobbing waves didn’t affect its accuracy.

By the 15th Century, they were common sights on ships, in churches, and in industries. They were the first dependable, reusable, and fairly accurate means of measuring time and would only be superseded with the invention of the mechanical clock.