WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms dizziness, fatigue and shortness of breath including Heart rhythm disorder, Anemia, and Medication reaction or side-effect. There are 119 conditions associated with dizziness, fatigue and shortness of breath.
According to ''National Geographic'' it took an estimated 20,000 to 30,000 workers to build the Pyramids at Giza over a period of 80 years from about 2570 to 2490 B.C. and slaves were not used.
Pyramid-building reached its zenith with the construction of the Great Pyramid at Giza, on the outskirts of Cairo. Built for Khufu (or Cheops, in Greek), who ruled from 2589 to 2566 B.C., the pyramid was later named by classical historians as one of the ancient worldâs Seven Wonders. Two other pyramids were built at Giza for Khufuâs successors Khafra (2558-2532 B.C) and Menkaura (2532-2503 B.C.).