When and why did trade by ship begin along the Rhine?

by the 17th century the trade was in full swing reaching the end of the 18th century

richard milhous nixon (january 9, 1913 – april 22, 1994) was the 37th president of the united states, serving from 1969 to 1974, when he became the only president to resign (quit). he is also known for corruption and the watergate scandal which resulted in the public losing trust in him and his resignation.