Use a genealogy program
Modern genealogy software is intended to assist you in creating a record of your family tree and history. These programs may include tools to assist you in discovering your family history, but they are more often designed to assist you in visualizing it.
One feature that people like about most genealogy programs is that they allow you to share your findings with family members and other interested parties. This makes it simple to collaborate as a group, especially if you have other relatives who may be interested in the subject.
Assume you are a Jewish person living in modern New York. You may be able to trace your ancestors back to a family homeland using a family tree builder. You might come across relatives you didn't know you had, and you might even come across forgotten special moments in your family history.