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Author Question: The earliest evidence for cultivated crops and domesticated animals has been found in the Middle ... (Read 47 times) |
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.