In 1759 – The British Museum, in Bloomsbury, London, the world’s oldest public national museum, opened to the public. Entry was free and given to ‘all studious and curious Persons’.
In 2001 – Wikipedia, the free Wiki content encyclopedia, went online as a feeder project for Nupedia, an expert-written online encyclopedia.
In 2005 – Thanks to a solar flare, ESA’s SMART-1 lunar orbiter discovered calcium, aluminium, silicon and iron – in Mare Crisium on the moon.
In 2013 – Facebook announced its ‘Graph Search’ improvements to internal search and recommendations.