Generally, you should not eat or during anything, including water, for eight hours before your oral surgery. If your type of oral surgery requires local anesthetic, have a light meal 1 to 2 hours before your oral surgery. Brush and floss your teeth prior to your appointment. Do not smoke at least 12 hours before your oral surgery. What an ideal opportunity to consider quitting, as smoking is not permitted for a minimum 24 hours after oral surgery.
Dashur: Black Pyramid of Amenemhat III. The Black Pyramid of Dashur was the first pyramid built by Amenemhat III (of the Middle Kingdom of Ancient Egypt) during the early part of his reign. Unfortunately the pharaoh failed to heard the warnings of history and so this pyramid is now in a rather poor state.
The largest and most famous of all the pyramids, the Great Pyramid at Giza, was built by Snefru's son, Khufu, known also as Cheops, the later Greek form of his name. The pyramid's base covered over 13 acres and its sides rose at an angle of 51 degrees 52 minutes and were over 755 feet long. It originally stood over 481 feet high; today it is 450 feet high. Scientists estimate that its stone blocks average over two tons apiece, with the largest weighing as much as fifteen tons each.