The Roman army used a sophisticated system of signals using flags and torches to communicate over long distances, sometimes covering up to 100 miles in a single day. elaborate
Genghis Khan's empire was so vast that it was possible to travel across it for months without encountering any other major civilizations. elaborate
Julius Caesar was allegedly able to dictate multiple letters at the same time. elaborate
Grace Hopper is credited with popularizing the term "bug" in computer science after a moth was found causing a malfunction in a computer. elaborate
The first commercially successful jigsaw puzzle was created in 1760s England, based on a map of the world, making it a surprisingly old form of entertainment. elaborate
Ancient Egyptians used to play a board game called Senet, which is considered one of the oldest board games in the world. elaborate