'View more than 57,000 historic videos and 7 million photos for FREE in one of the world's largest collections of royalty-free archival stock footage. Offering immediate downloads in more than 10 formats starting at just $1.97 (Consumer); $30 (Pro).

'Together with the introduction of rural mail delivery, the telephone, and the automobile, farm newspapers played a key role in the modernization of rural America. The Farm, Field and Fireside collection contains historically significant U.S. farm weeklies published in the late nineteenth and early twentieth centuries.

Browse the Europeana collections through time periods

'On your own for professional development? Earn a certificate of completion by taking the Library's self-paced interactive modules. Each multimedia-rich program delivers approximately one hour of staff development.'

'This site is designed to provide free viewing and downloading of the entire USGS photographic collection.'

'NLM historical collections include selected digitized material relating to the history of medicine. Chosen from the manuscripts and books collections, the prints and photographs collection, historical films and videos, current and past exhibitions, and the Digital Manuscripts Program, these digitized materials cover a spectrum of centuries and cultures from medieval Islam to contemporary biomedical research.'

Information on almost 35,000 slaving voyages

'These links connect to European primary historical documents that are transcribed, reproduced in facsimile, or translated.'

'The Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres was published under the direction of Diderot and d'Alembert, with 17 volumes of text and 11 volumes of plates between 1751 and 1772. Containing 72,000 articles written by more than 140 contributors, the Encyclopédie was a massive reference work for the arts and sciences, as well as a machine de guerre which served to propagate the ideas of the French Enlightenment. The impact of the Encyclopédie was enormous. Through its attempt to classify learning and to open all domains of human activity to its readers, the Encyclopédie gave expression to many of the most important intellectual and social developments of its time.'

'Underwritten by a "We the People" grant from the National Endowment for the Humanities, The Digital Library on American Slavery is a cooperative venture between the Race and Slavery Petitions Project and the Electronic Resources and Information Technology Department of University Libraries at The University of North Carolina at Greensboro. The Digital Library offers a searchable database of detailed personal information about slaves, slaveholders, and free people of color. Designed as a tool for scholars, historians, teachers, students, genealogists, and interested citizens, the site provides access to information gathered and analyzed over an eighteen-year period from petitions to southern legislatures and country courts filed between 1775 and 1867 in the fifteen slaveholding states in the United States and the District of Columbia.'

Flash and non-Flash timelines of British history

Essays and imagery from the BBC, on British History from the Norman period to the present. Sections include Middle Ages, Tudors, Civil War and Revolution, Empire and Sea Power, Victorian Britain, and more.

Sections on Egypt, Greece, British prehistory, Rome, Vikings, Anglo-Saxons, Ancient India, from the BBC. Includes essays, images, etc.

'A decade after Joseph Conrad's Heart of Darkness first depicted the mysteries and agonies of the area, Herbert Lang and James Chapin set sail for the northeastern Belgian Congo. They knew they were launching an extraordinary adventure, but they could not have imagined what those years would hold. By the time they sailed home five and a half years later, they had collected tons of precious zoological and anthropological specimens representing one of the most comprehensive collections of the day'

'This blog is made up of transcripts of Harry Lamin's letters from the first World War. The letters will be posted exactly 90 years after they were written. To find out Harry's fate, follow the blog!'

'The Poor Law Amendment Act was introduced in 1834, centralising the poor relief administrative system. Previously, poor relief had been largely the responsibility of the parish. Expenditure had risen during the Napoleonic Wars and local rate payers and authorities decided that looking after paupers was too costly. When the Poor Law Amendment Act was passed, parishes were grouped into 'unions', managed by boards of guardians who were elected by their constituent parish ratepayers. The new poor law unions were to report to the Poor Law Commissioners, based in Somerset House in London.'

'Here you can view digitised material from the National Library of Scotland's outstanding collections. These special web features offer unique glimpses into a variety of chapters of Scotland's story'

Broadsides at the National Library of Scotland

'IWM London, the headquarters of the Imperial War Museum, the multi-branch national museum of war and wartime life from 1914 to the present day"'

"The Atomic Archive explores the complex history surrounding the invention of the atomic bomb. Follow a timeline that takes you down the path of our nuclear past to the present. Read biographies of A-bomb father Robert Oppenheimer and Enrico Fermi's dispassionate account of the Trinity Test. Examine maps of the damage to Hiroshima and Nagasaki, and summaries of arms-control treaties. You'll also find an excellent gallery of photographs and historical footage."