General Science and Technology: History

ECHO, Exploring and Collecting History Online, is a browsable and searchable portal of over 5,000 websites related to the history of science, technology, and industry. Many websites are annotated and some are reviewed.

An interactive timeline compiled by scientists, science communicators and historians. It celebrates three and a half centuries of scientific endeavor and has been launched to commemorate the Royal Society's 350th anniversary in 2010. This site describes historic events and provides access to historic scientific articles.

This site from the National Institute of Standards and Technology details the evolution of time keeping through the Ages, from primitive water clocks to modern atomic clocks.