What did the people use during the construction of the tower of Babel?

During the construction of the Tower of Babel, the people used bricks as their primary building material, which they baked thoroughly to ensure durability. They also utilized tar for mortar, aiding in binding the bricks together. This construction approach reflected their ingenuity and desire to create a monumental structure that would reach the heavens. Their ambition ultimately led to divine intervention, resulting in the confusion of languages.