The calibrated dates from the 1995 Old Kingdom pyramid samples tended to be 100 to 200 years older than the historical dates for the respective kings and about 200 years younger than our 1984 dates.
The number of dates from both 19 was only large enough to allow for statistical comparisons for the pyramids of Djoser, Khufu, Khafre, and Menkaure. First, there are significant discrepancies between 19 dates for Khufu and Khafre, but not for Djoser and Menkaure.
The turn of the millennium was not the first time that the American media had been transfixed by young people partying right up to the brink of economic crisis.
1855: Introduced in Paris Exposition (Encyclopedia Britannica 1973 (1): 693).
1886: Modern electrolytic method of producing aluminum discovered by Charles Martin Hall in the United States and Paul L. Heroult in France (Encyclopedia Britannica 1973 (1): 693). 1920: Beginning of commercial production of aluminum foil; used to wrap tea, candy, gum and cigarettes (Sacharow 191).
The 1984 results left us with too little data to conclude that the historical chronology of the Old Kingdom was in error by nearly 400 years, but we considered this at least a possibility. During 1995 samples were collected from the Dynasty 1 tombs at Saqqara to the Djoser pyramid, the Giza Pyramids, and a selection of Dynasty 5 and 6 and Middle Kingdom pyramids.
Alternatively, if our radiocarbon age estimations were in error for some reason, we had to assume that many other dates obtained from Egyptian materials were also suspect. Samples were also taken from our excavations at Giza where two largely intact bakeries were discovered in 1991.
1939: Aluminum foil being used to wrap dried fruit, cream cheese, and for beer labels (Sacharow 1978: 111).
1940-1945: Increased demand for aluminum foil packaging (Sacharow 1978: 112).Historical archaeologists and others trying to date historical sites by means of the artifacts found on them are increasingly interested in common items manufactured during the lifetimes of people still living.This dating guide is intended to provide a simple source for the most common artifacts found in archaeological or historic contexts. Example: evangelic eclipse described in the New Testament and connected with the Crucifixion. New graph of D" oscillates about one and the same value. Three rigid "astronomical shifts" of ancient eclipses. Efimov Volume 1: The Development of the Statistical Tools (*pdf) Volume 2: The Analysis of Ancient and Medieval Records.