Which ancient civilization provides historical context for humans depending on algae for sustenance?
Answer
The Aztecs
The viability of using algae as a primary food source is supported by historical precedent dating back millennia. The Aztecs relied on algae, which they harvested from lakebeds, as a component of their traditional diet for sustenance. This long history of successful human consumption lends significant credence to the modern consideration of spirulina as a viable food source for novel, challenging environments such as long-duration space missions.
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