The fall of the roman empire was not due to one event but due to many events combined.

It means that the roman empire didn't fall because of one event. there was many events that led to the fall. these events didn't happen all at once though. the events happened around the same time period though.

Several different things make up a culture like, how the people worship, their form of government, geography, and trade. religion is one of the most important things to a culture, it defines peoples life. their different beliefs form into festivities and events that merge with their culture. people that practice hinduism see cows as gods, so no doubt they would celebrate cows, and these celebrations would definitely merge with their culture. those that are buddhist live life trying to reach a certain level of peace, so no doubt would they change things in their life in order to correspond with their religion.