Richard M. Nixon is known to be the conversion of United States forces in Vietnam. Nixon was the President of the United States at 37th number from 1969 to 1974 at his retirement. He was the single president to retire from office. He had earlier worked as the 36th Vice President of the United States during the years 1953 to 1961.
<span>Copernicus placed the sun at the center of the universe. Ptolemy place the earth at the center.
Both of these view couldn't be proven at that time, but only Copernicus experienced negative backlash by the church because it's deviate from the biblical teaching. Not until year of 1600s before another intellects name Galileo created the invetions that might prove Copernicus' theory (which also being torn apart by Religious groups)</span>
Attacks from barbarian tribes outside of the empire such as the Visigoths, Huns, Franks, and Vandals. The Roman army was no longer a dominant force. The empire became so large it was difficult to govern.
Following the Five Great Relationships:
Elder Brother - younger brother
father - son
husband- wife
elders- younger
<span>ruler- subject</span>
