3 ms·
https://en.wikipedia.org/wiki/774%E2%80%93775_carbon-14_spike https://en.wikipedia.org/wiki/774%E2%80%93775_carbon-14_spik...
by rwmj 3y ago
https://en.wikipedia.org/wiki/774%E2%80%93775_carbon-14_spike https://en.wikipedia.org/wiki/774%E2%80%93775_carbon-14_spik...