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History of Measuring Tall Buildings

success fail Jan APR Jun 10 2011 2012 2013 128 captures 03 Jan 2011 - 12 May 2019 About this capture COLLECTED BY Organization: Alexa Crawls Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period. Collection: Alexa Crawls Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period. TIMESTAMPS