this video is about History of construction of Egyptian Pyramide.br The construction of the Egyptian pyramids spans over 2,700 years of architectural evolution, beginning with simple mastabas and culminating in the famous smooth-sided pyramids of Giza. Here is a clear, structured history of how the pyramids came to be:br br 1. Pre-Pyramid Beginnings (c. 3500–2700 BCE)br br Before pyramids existed, early Egyptian elites were buried in mastabas—rectangular, flat-roofed tombs made of mudbrick. These represented the earliest steps toward monumental royal tombs.br br 2. The Step Pyramid: The First Pyramid (c. 2670 BCE)br King Djoser (3rd Dynasty)br br Architect: Imhotep, Egypt’s first known architect and engineer.br br Structure: The Step Pyramid of Saqqara, a stack of six mastabas of decreasing size.br br Innovations:br br Use of cut limestone instead of mudbrick.br br First large-scale stone building in human history.br br A complex surrounding temple and ceremonial spaces.br br This was the prototype for all future pyramids.br br 3. The Evolution Toward True Pyramids (c. 2630–2575 BCE)br Sneferu (4th Dynasty)br br Sneferu built at least three major pyramids, experimenting with design and engineering:br br The Meidum Pyramidbr br Started as a step pyramid; later converted to a smooth-sided one.br br Structural problems led to partial collapse.br br The Bent Pyramid (Dahshur)br br Lower angle: 54°.br br Upper angle: reduced to 43° to prevent collapse.br br Shows engineers still experimenting with load distribution.br br The Red Pyramid (Dahshur)br br First successful true smooth-sided pyramid.br br Marks the final design that led to the Giza pyramids.br br Sneferu’s reign was the golden age of pyramid innovation.br br 4. The Great Pyramids of Giza (c. 2580–2500 BCE)br Khufu (Cheops)br br Great Pyramid—the largest ever built (original height 146.6 m).br br Contains sophisticated internal chambers and relieving structures.br br Khafrebr br Built the second pyramid, appearing taller due to elevated bedrock.br br Likely associated with the Great Sphinx.br br Menkaurebr br Smallest of the three main Giza pyramids.br br Notable for granite casing on the lower courses.br br Construction features across the Giza pyramids:br br Workforce: not slaves, but skilled laborers, seasonal workers, and paid crews.br br Tools: copper chisels, stone hammers, wooden sledges, rope, and levers.br br Logistics: complex management, food supply, and quarrying.br br Quarry sources:br br Limestone locallybr br Granite from Aswan (transported ~900 km by river)br br 5. Decline and Transformation (5th–13th Dynasties)br br After the 4th Dynasty, pyramid construction changed:br br 5th–6th Dynastiesbr br Pyramids became smaller and used lower-quality stone cores.br br More emphasis on interior decoration (e.g., Pyramid Texts).br br Middle Kingdom pyramids (c. 2050–1800 BCE)br br Often had mudbrick cores with stone casing.br br Many collapsed over time.br br Late pyramid buildingbr br Pyramids continued into the Nubian Kingdom (Kush), which built smaller, steeper pyramids at Meroë.