The 1400's to the 1700's was the chronological time frame.
1400 to 17000
The Middle Ages covers the period from the fall of the Roman Empire in the 5th Century AD, to the Renaissance period in the 16th Century.
Military history is found in FM 1-20. See the link below.
Where ever there were blacks! The history of the many cultures is diverse and covers a large area of the world including the Americans and Africa, parts of Asia and Europe.
There is a very good explanation found at http://www.watchtower.org/e/200604a/article_01.htm that I think you would enjoy reading. Wikipedia covers the history of the cross as well at http://en.wikipedia.org/wiki/Cross.
This question is too general for an answer, it covers 624 years of human and natural history. Please make your question more specific.
The European Union contains 27 member states, 500 million people, and covers roughly 4,300,000 km squared.
1825-1865
Geologic time covers the period from the formation of the Earth to the present, a period of roughly 4.6 billion years.
There are many places where one could purchase cheap European Breakdown Covers. One could check online insurance sites for deals on cheap European Breakdown Covers.
The landform that covers most of Europe is the Northern European Plains. The European Plains covers more that 50 percent of Europe.
The answer depends on how deep the coverage will be. River Rock weighs 2,800 LBS. per cubic yard - That's 1.4 tons per cubic yard. One ton = 2,000 LBS. 2,000 divided by 2,800 equals roughly 0.71. So one ton of river rock is roughly 0.71 cubic yards. 0.71 cubic yards covers roughly 230 square feet 1" deep 0.71 cubic yards covers roughly 115 square feet 2" deep 0.71 cubic yards covers roughly 77 square feet 3" deep 0.71 cubic yards covers roughly 57 square feet 4" deep 0.71 cubic yards covers roughly 38 square feet 5" deep
From "Austronesia" which covers roughly present-day Indonesia.
Russia
The Northern European Plain
The North European Plain
The Arctic Ocean covers roughly 9% of the Earth's surface.
It covers a short period of time. apex