Answer:
200years
Explanation:
During the period of the Crusades, warfare between Christians and Muslims lasted nearly 200 years.
The Crusades were a series of military campaigns promoted by the Pope and carried out by a large part of Christian Latin Europe, mainly by the France of the Capetians and the Holy Roman Empire. The Crusades, with the initial specific objective of restoring Catholic control over the Holy Land, were fought over a period of almost two hundred years, between 1096 and 1291. Later, other campaigns in Spain and Eastern Europe, some of which they did not see its end until the fifteenth century, received the same denomination. The Crusades were held mainly against the Muslims, but also against the pagan Slavs, Jews, Greek and Russian Orthodox Christians, Mongols, Cathars, Hussites, Waldenses, Prussians (or Prussians), Lithuanians (in general against the Baltic peoples) and against enemies politicians of the Popes.
Answer:
The concept inadvertently challenged by Progressives' call for expert opinions was:
Elected officials' autonomy
Explanation:
Through the efforts of the Muckrakers or progressive journalist, the corruption of the established institutions and leaders were exposed. Elected officials because they were wallowing in corruption did not want their administrations probed by non-elected bodies, sought vicariously for autonomy. They wanted the checks and balances through independent judiciary to be removed. However, during the 1890s to 1920s, an era known as the Progressives Era, the progressives challenged the existing autonomy of elected officials, proposing to end the monumental corruption that was in vogue at that time.
we got the idea from the French who got it from the anctient Romans
