Some people keep track of their family history data in a genealogy database on their computer. Examples of data that a person would save are dates and places of births, marriages, and deaths. Other information that might be saved are records of military service, census records which show where ancestors lived at a certain time, immigration data, education, occupations, and even photos of the ancestors. The person building the database can usually decide to save many kinds of data—news articles, stories that were told in the family (oral history), information on religious ceremonies, wills or inheritances, information from family letters, customs, or how world or local events affected the family. The advantages of using a genealogy database are that it helps to keep the data organized, especially when relationships change; it can generate several types of charts or tables with the data filled in; it may make it easier to share data with others; and it takes up less room than paper and notebooks.