Tokugawa coinage was a system of money used in Japan during the Tokugawa period, which began in 1603 and ended in 1868. Imagine that you have some coins, one is worth 1 dollar, another is worth 10 cents, and another is worth 25 cents. These are like the different coins the people in Japan had during this time.
Before the Tokugawa period, money in Japan was made mostly of silver and gold. But during the early years of Tokugawa rule, the government had a problem. They needed to make more money to pay for things like wars and building projects, but they were running out of precious metals. So they started making money out of copper, which was easier to find.
The new coins had different shapes, sizes, and designs. They were sometimes called "octopus coins" because they had many holes in the middle. People had to get used to these new coins and learn how to use them, just like you might have to do if you got new toys to play with.
Coins weren't just used to buy things. They were also used to show your status in society. Different coins had different values, so if you had a lot of the higher-value coins, people would know that you were wealthy.
Another thing to know is that during the Tokugawa period, Japan was divided into many different regions, each with its own government. Each region had its own coins, which made things confusing because it was hard to know which coins were worth what when traveling from one region to another. To fix the problem, the government established a standard system where all coins from all regions had a standardized weight and size.
In conclusion, Tokugawa coinage was a system of money used in Japan during the Tokugawa period. It was made of copper and had different designs, shapes, and sizes. It served as a way to show wealth and was standardized across different regions of Japan.