The answer to the question stated above is immolation.
Some of the first anti-war demonstrations were <span>immolations.
</span><span>These immolations are are self immolations by Buddhist monks.
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>>Self-immolation<span> is an act of killing oneself as a sacrifice.
</span> <span> This is typically referred only to setting oneself on fire. In history, immolation is a suicidal option</span>
I believe its; Had understand of scientific principles, had understanding of mathematics, developed technologies which somehow were lost (The records of the lost technologies were burned down in a library/and when Roman was overran by barbarians, thus I'm not sure if the last one is correct or not.)
