In Nashtifan, Iran, vertical-axis windmills made of clay, straw, and wood have milled grain for nearly 1,000 years. Dating back to between 700 and 900 CE, these structures represent the earliest ...
Analysis of preserved feces and intestinal tissue has revealed specific types of bacteria that were present in the microbiome of a young adult man who lived in Mexico about 1,000 years ago, prior to ...
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