Why did Chinese warriors continue to use bronze weapons well into the Iron Age?

What crime was king louis xvi accused of, what happened to him as a result?

Even though the u.s. declared neutrality, who did most americans side with in wwi?

Which suggests the most critical aspect of the peak oil theory? 1) controversy rages over rumors that the fracking lobby in washington has influenced the statistics. 2) supporters and critics argue endlessly over the rate of extraction and shape of the bell curve. 3) saudi arabia will soon have to begin fracking, leading to protests and further destabilization. 4) a new oil discovery means a fresh peak cycle, making that region the target of aggressors.