In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Let me give you an example: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
The answer to this example can be: How many books are there in the British Library?
Here is why: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

OK. solve this:
Article: The roots of what we call"volunteerism"reach back many generations, to a time when neighbors and townspeople would come together to build and run their communities' most important organizations--everything from schools and governments to fire-fighting and self-defense. Besides organizations,however, this early volunteerism brought community elements more tightly together, allowing neighbors to get to know one another, to achieve something important and,more often than not to have fun. _ Today,volunteerism continues to thrive.Why? Because volunteerism gets people out of their homes,and brings them together with others who share their interests and concerns.It gives people a chance to directly improve the communalities in which they live.And it's still fun. As an important part of social life,volunteer service is gaining more attention and support in the whole world.Volunteers make considerable contributors to social and economic development of the world in the fields such as humanitarian assistance ,social welfare ,education,environmental protection,health and etc.In 1985,the United Nations General Assembly announced the December 5th of each year as the International Volunteers'Day--the day for volunteers all over the world.On this day,many countries in the world organize various activities to celebrate International Volunteers' Day and encourage volunteerism and voluntary service. In recent years,volunteer service in China is also developing very fast With the coming of the Olympic Games to Beijing,more and more citizens are willing to be volunteers and various voluntary organizations are set up.Olympic volunteers won't just watch history unfold on their television screens--they'll have a once-in-a-lifetime chance to share the excitement. and make history themselves.
Answer: People could share their interests and concerns.
Answer:
What was the advantage of volunteerism many generations ago?