What is the origin of brush ink? Did the ancients write with ink ingots instead of ink? The ink in Four Treasures of the Study refers to Mo Ding? The origin of Mo Ding?

Before 1865, there was no ink in China, only in Mo Ding, mainly in 6 yuan. In China, one kilogram is equal to 16 yuan, so many people use one or two ink sticks. Nowadays, in order to distribute ink sticks, people only need to choose 1 or 2 ink sticks. There was no ink before!