B.G By missnicholls2016 Apr 27, 1898 Polythene Apr 27, 1910 The Haber-Bosch process Apr 27, 1928 Penicillin Apr 27, 1970 This Screen May 29, 1992 Synthesis of Single-Walled Carbon Nanotubes Apr 27, 1994 Successful Synthesis of Taxol Apr 30, 1998 Description of Surface Chemistry (1998 Apr 27, 2000 Nano-Scale Microscopy Apr 27, 2011 Insights Into the Beginning of Life on Earth