Blackboards with black colour was a huge success until the 1900s. But in 1930, the company of blackboard started manufacturing the green blackboard. The chalkboard with the use of green porcelain enamel paint. And the reason for changing its colour to green as its more pleasing to the eyes for the day. Besides, the green colour reduces glare. On the other hand, teachers found it more beneficial for the class, and it improves the learning capacity. That's how green colour chalkboard introduce in the market to schools and colleges. There are some of the notable brands which you can check out if you wish to buy blackboard or green chalkboard. And they are Ikea, Bi-Office, Tchibo, FIS, and many more.