This document provides a timeline that covers the milestones in the history of school libraries which became a separate section of the Library Association of Australia, now the Australian Library and Information Association (ALIA), in 1967. It also highlights significant events in the education and/or government sectors. Data from many of the reports commissioned by ALIA was used for lobbying federal government bodies which resulted in funding for school library buildings and resources. This funding, together with an emphasis on positive learning outcomes for students, has ensured that school libraries are influential within the education and library communities. For fifty years ALIA Schools has supported its members to make a positive difference to student learning outcomes. This support has also ensured that teacher librarians and school library staff are effective professionals.