When was the Estonia flag made?

The national flag of Estonia was officially adopted on August 7, 1990, following the country's Declaration of Independence from the Soviet Union. The flag features three horizontal stripes of blue, black, and white, symbolizing the sky, the soil, and the struggle for freedom, respectively. However, these colors were historically associated with Estonian nationalism and had been used in various forms since the early 20th century. The design itself dates back to the early 1880s, when it was first used by students at the University of Tartu.