Catholic people were told that if they prayed at holy places called shrines, they could be forgiven their sins or be cured of illnesses. This is why people took the risk of going on pilgrimages.
Secondary Sources
Speech by Martin Luther King against the Vietnam War
http://www.americanrhetoric.com/speeches/mlkatimetobreaksilence.htm
Website for Special Operations, Navy SEALS
http://www.specialoperations.com
Abbreviated Timeline
http://www.english.uiuc.edu/maps/vietnam/timeline.htm
He was very successful as president because he got the Louisiana purchase he helped push the government and he made a republican and democratic nation