Improvements in Navigational Devices such as Maps and Instruments such as the compass and Astrolabe as well as significant improvements in Ship-making increased European Exploration.
Chicago is a midwestern city that experienced a major fire during the late 1800s.
The Great Chicago Fire was a blaze that raged in Chicago, Illinois, in the United States, between October 8 and 10, 1871. Over 17,000 buildings and about 3.3 square miles of the city were destroyed by the fire, which also left over 300 people dead and more than 100,000 people homeless.
For many years, a goat that was once ejected from Wrigley Field was to blame for the Cubs' inability to go to the World Series. And for well over a century, the Great Chicago Fire of 1871 was started by a cow owned by Mrs. O'Leary.
The fire raged into the following day before ultimately being brought under control on October 10, when rain provided firefighting efforts a much-needed assist. An estimated 300 persons perished in the Great Chicago Fire, along with 100,000 more.
To know more about Chicago Fire refer to: brainly.com/question/12286595
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<span>All are true. Without natural resources there can be no production and trade. A young and a healthy workforce is necessary to produce and manufacture in order to ensure that capital is flowing and the economy and trade are prospering. There are other factors that might influence it but these three are the main ones in ideal societies. </span>
Answer:
The use of the abacus was expanded and refined.
Explanation:
The abacus was invented during the Yuan Dynasty which lasted between 1206AD till 1368AD and then it was expanded and refined by the Ming Dynasty (1368AD-1644AD).
There have been archaeological proof of this as the writings of Tao Zongyi describes in his book that the new servants, unlike the older and more experienced ones were "just like abacus heads" and that they would not move unless they were made to move. This bears credence to the fact that the abacus was already widely used then.
An abacus was used to count numbers.
