Which us president made history when he became the first and only man to ever become president even though he was elected to the office of president or vice president

Republican politician Theodore Roosevelt unexpectedly became the 26th president of the United States in September 1901, after the assassination of William McKinley. Young and physically robust, he brought a new energy to the White House, and won a second term on his own merits in 1904.

the process is called revolution because it was a process of great economic-social transformations that began in england in the xviii century.

the industrial mode of production spread throughout much of the northern hemisphere throughout the xix and early xx centuries.

the effect of this revolution was the distance between the countries, with respect to economic and political power.   after all, not all industrialized at the same time, remaining in the condition of suppliers of raw materials and agricultural products to the industrialized countries.

these differences mark to this day the nations of the world that are divided between developed and developing countries. one way to measure whether a country is advanced is to assess how industrialized it is.