654877bd_erials_Science_and_Engineering__Significance
[Date] 1958 [Candidate Moment] Jack Kilby integrates capacitors, resistors, diodes, and transistors into a single germanium monolithic integrated circuit or "microchip." [Significance] 
Makes possible microprocessors and, thereby, high-speed, efficient, convenient, affordable, and ubiquitous, computing and communications systems.
Greatest Moments in Materials Science and Engineering
Significance