Each Year 1.25 Millions people die in traffic accident.
Traces of 400,000-year-old covered wood shelters have been found at Nice (France).
Neolithic revolution took place after 10000 B.C.
The Sumerians kept records by using clay tablets with pictographs after 4000 B.C.
Paleontology is the science of history of life.
The three pyramids of Egypt were built from 2700 to 2500 B.C. These are the tombs of Khufu, Khafra and Menkaura.
The lighthouse of Alexandria was built about 270 B.C.
The Great wall of china was completed in 204 B.c. it sis 1500 miles long. its average height is 25 feet and about 12 feet wide at the top.
The Leaning tower of Pisa (Italy) built in the 12th century stand in a slanting position about 14 feet from the perpendicular.
The Grand Canyon eroded by the Colorado river in USA is 217 miles along, one mile deep and about 18 miles wide in NW Arizona
