Carnival glass is a special type of glass that is really pretty and colorful. It was first made a very long time ago, more than 100 years ago!
The people who made carnival glass wanted to create something that was both beautiful and affordable, so they made it by using special techniques to color clear glass pieces.
They would heat up the glass until it was really hot, and then quickly cool it down with special chemicals. This made the glass have a unique look, almost like it was shimmering or shiny with different colors.
The name "carnival glass" comes from the fact that it was often used as prizes at carnivals and fairs - people could win a piece of carnival glass by playing games or doing activities.
Nowadays, people still love and collect carnival glass because it's so pretty and unique. They might use it as decorations in their homes or just admire it as a special piece of art.