Baked bricks form this fortification wall. The strength and height are increased by alternating rows of bricks running in different directions.
Kiln-baked bricks were stronger and these were used for the outer walls of structures. Archaeologists have found clay or mud brick structures, often in ruins, dating to as early as 3800 B.C.
Brick kilns (shown below) were discovered at Egyptian Teudjoi (Ankyronpolis) south of Beni Suef, on the east bank of the Nile.
Genesis 11:3 tells us that the towers in Mesopotamia were built of fired brick, Mud or clay bricks were used to build temples, palaces, entrances to royal tombs, houses, walls, and pyramidal towers called ziggurats. The Mesopotamian ziggurats were built with a core of sun dried mud brick and an exterior covered with kiln-baked brick. Ziggurats were stepped temples.
The Sumerians used bricks to create arched entrances to royal tombs. Sumerian arches were made by stacking bricks on top of each other in steps that met in the center. Around 3000 B.C, builders created a special wedge-shaped brick mold that allowed the bricks to fit even more closely together above a doorway.
The Sumerians and ancient Egyptians built shrine cities and fortifications using clay bricks mixed with straw. According to Exodus 5:7, Pharaoh ordered the Egyptian taskmasters: "You are no longer to supply the people with straw for making bricks; let them go and gather their own straw."
To increase the production of bricks teams of brick makers competed against each other. This image (above) of men making bricks appears on the wall of the tomb of Rekmara, a ruler of the Eighteenth Dynasty (1550-1292 BC).
The land of Canaan and it's principal cities, such as Hazor, Kadesh, and Jerusalem, were under Egyptian rule during the Eighteenth Dynasty. Cities under Egyptian rule were fortified with walls many feet thick. The north wall protecting Lachish was 17 feet thick and the outer walls of Gezer were 14 feet thick. These fortified shrine cities are called the "high places" in the Bible. Jerusalem was named Jebus (Yebu) because it was the city of the Jebusites who built their royal complex on the south-eastern hill of Jerusalem.
Bricks were used to lay out the structure of a new building. Stacked bricks served as markers. Some buildings contained bricks that were inscribed with prayers and dedications, as is done today on the corner stones of new buildings.
Related reading: The High Places