They didn't believe in having a dictatorship and thought it should always be avoided or overthrown.
Achievements and contributions: new inventions such as soap bars, toothpaste, valves, mechanized waterclocks, and frequency analysis. Scientific breakthroughs in experimental physics.
Notable figures: Ibn al-Haytham (Alhazen), Abhas Ibn Firnas, al-Jazari.
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The event of Tet Offensive is considered as one of the biggest failure in the foreign intelligence as well as a political defeat in the history of the United States.
<h3>What happened during the Tet Offensive?</h3>
The Tet Offensive was an event that lasted for about 9 months during the year 1968 in which the North Vietnamese attacked on more than a hundred cities in the Southern Vietnam.
With the progress of this event, the United States had to decrease the amount of its involvement in the Vietnam War, which weakened the US politics.
The American foreign intelligence could not identify the processes that were going behind the back of the United States of America, instating a big failure of their system.
Hence, it can be stated that the Tet Offensive is one of the biggest failure of foreign intelligence as well as a political defeat.
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Answer: Archaeologists use a range of other records alongside the matrix to represent and analyse the spatial relationships between stratigraphic units.
Explanation: such as drawn plans and, increasingly, the spatial components of the site represented in a GIS.