unified database that aims to contain one entry for each person recorded in genealogical records. All FamilySearch users are able to add persons, link them to existing persons or merge duplicates. Sources, images, and audio files can also be attached to persons in the tree. There are also several features specific to the membership of the LDS Church, facilitating temple ordinance work. In keeping with an agreement with Jewish groups and to prevent abuse, performing LDS ordinances for Holocaust victims or celebrities results in account suspension until the researcher proves a legitimate family connection to the subject of their search. FamilySearch allows users to input same-sex marriages or other unions. Indexing projects Searchable indexes of the records on FamilySearch are created by volunteers of the FamilySearch Indexing program. To ensure greater accuracy, each batch of records is indexed by an indexer and is then checked by a more experienced indexer. Indexing volunteers need not be members of the LDS Church. FamilySearch is currently working with genealogical societies all around the world to index local projects. At the end of 2010, 548 million vital records had been transcribed and made publicly available through the FamilySearch website. In April 2013, FamilySearch Indexing completed their goal to offer 1 billion indexed records online. Education FamilySearch offers free lessons on FamilySearch.org to help people learn how to find their ancestors. The topics range from basic research to training on specific record types and are designed for both beginners and experienced researchers. Most of the classes come from research consultants in the Family History Library in Salt Lake City, but FamilySearch is also collaborating with partners such as the Mid-Continent Public Library in Independence, Missouri, to record and post classes. In 2007, it was decided to start a Family History Research Wiki to help FamilySearch users and others researching genealogy and family history to find and share information on data sources and research tips. The first version of the wiki was built on the Plone wiki software product, but it was soon discovered that MediaWiki software was much more suitable, so in January 2008 it was moved to the MediaWiki platform. In the intervening years it was rolled out in other languages, and as of July 2014 it was available in 11 languages. The other language wikis are found via links at the bottom of the wiki homepage. The wiki in English had over 79,500