1976 – K&E produced its last slide rule, which it presented to the Smithsonian Institution. While slide rules continue to be made, especially for marine and aviation uses, K&E had been the dominant manufacturer, and this signaled the end of an era, and the rise of the electronic calculator.
http://www.edn.com/electronics-blogs/edn-moments/4390151/Last-slide-rule-manufactured–July-11–1976
1979 – The US space station Skylab returned to Earth scattering debris over the Indian Ocean and Western Australia.
http://www.nasa.gov/mission_pages/skylab/
2008 – Apple’s second phone, the iPhone 3G went on sale, featuring 3G data connectivity.
http://www.apple.com/pr/library/2008/07/10iPhone-3G-on-Sale-Tomorrow.html
Read Tom’s science fiction and other fiction books at Merritt’s Books site.