Answer: Italy
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Italy was the European country that entered WWI as part of the Central powers but later switched sides to the Allies in 1915.
Explanation:
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<span>A) Slavery was abolished, the Colosseum was built and the empire expanded. In this time, tranquility ceased to exist, slavery and the rulers built social and public works. C) The Coliseum was built, the empire expanded and more public works were built. It was the construction of the Coliseum and different works, the empire was also developed until reaching its maximum power and success. D) The emperors waged wars with the surrounding territories, more public works were built and fewer farmers were needed. The war ceased during a time of intense peace and tranquility, lived by the Roman Empire, where it reached its maximum economic development and territorial expansion.</span>
Adding the story would have been a good idea for others to help you.
Answer:
Well based on the fact that the very first patented rock crushing machine was made in the year 1830, and the first successful, Eli Whitney Blake's, was in 1858, I'd say the development process was around 30 years.
