The radio transmitter and aerial antenna was an innovation of A. Guglielmo Marconi.
Actors wore terra <span>cotta masks with exaggerated expressions on stage seems the best..</span>
The correct word is "precedent"
Many of George Washington's customs that he set while President became the precedent by which other Presidents acted.
The most famous was, until FDR, the two term limit for Presidents.
After FDR, two terms would be codified.
I'm not positive but I think it was because of nuclear power where each country kept on acquiring more nuclear powers. Each country was trying to out power the other and this caused tensions to be higher since there was a risk of war.
B. present particible is anything ending in -ing in present tense
