The French and Indian War was the nine-year North American chapter of the Seven Years War. The conflict, the fourth such colonial war between the kingdoms of France and Great Britain, resulted in the British conquest of all of New France east of the Mississippi River, as well as Spanish Florida. The outcome was one of the most significant developments in the persistent Anglo-French Second Hundred Years' War. To compensate its ally, Spain, for its loss of Florida, France ceded its control of French Louisiana west of the Mississippi. France's colonial presence north of the Caribbean was reduced to the tiny islands of Saint Pierre and Miquelon.
The period in the late 19th century that restored Imperial Rule in Japan is known as the Meiji Restoration this happened in 1868. Although Emperor Meiji was not the first Imperial rule of Japan his ascension to the throne clearly placed political power under the protection of the Emperor. This period lasted from 1868 until 1912 and led to the modernization of Japan and laid the groundwork for the modern Japanese state of today.
I believe the answer is Barbed Wire.
Befor the inventions of barbed wire, the Cattles are let to roam freely across the plains and the owners are required to pay a lot of cowboys to supervise them so they didn't go missing. Witht he invention of barbed wire, they can keep the cattle in a secure place without supervision.
