What is the fine-grained topic of the following text: Little did they know that they were starting what would become a thrift movement, extending from Canada to the U.S.
We are grateful to be a part of the MCC Thrift Shop Network that not only provides quality second-hand items at reasonable prices to the people in our community, but that also supports the relief, development and peace work of MCC around the world. Only return the topic.
The establishment and impact of the MCC Thrift Shop Network.