Albert Einstein He developed the general theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).

The first integrated circuit invented by the engeneer Jack S. Kilby1 (1923-2005) contained only a few transistors. Texas Instruments.

ESP8266 core board install

If you couldn't install the board with the board manager then you should use the downloaded ZIP before. Extract the zip and copy the content into the Arduino directory, into hardware, ESP8266COM and a new folder called ESP8266. Now you should restart the IDE and try if it works.

WeMos mini pins