1937.
1956
ARPANET was decommissioned in 1990.
1935
Only if you are a vampire or werewolf.
Certainly. There is a chance that the earth will cease to exist.
No. Matter cannot be creater nor destroyed. An object cannot simply cease to exist.
1990
yes without an identity you aren't reconized you cease to exist without dying while you are in the physical world you cease to exist in the mental world thus making you extinct while being here.
dead 'Vanish' which means cease to exist.
ECLIPSE
possibley