Boycotts marred the jamborees of 1956 , 1976 , 1980 and 1984 .
1956、1976、1980和1984年的奥林匹克盛会就因受到抵制而受损。
In the last electoral cycle , the political jamborees were held in denver and minneapolis and there seems to have been a coincidental surge in the local market for sex .