How old are roses?
Fossil evidence shows that roses existed about 35 million years ago, long before humans.
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- Do chrysanthemums clean the air?
“A NASA study found that chrysanthemums can remove some pollutants from indoor air.”
Reference: NASA
More from this shelf
What is the Chrysanthemum Throne?
The chrysanthemum is the symbol of Japan's imperial family, whose throne is called the Chrysanthemum Throne.
Who invented pasteurization?
French scientist Louis Pasteur developed pasteurization in the 1860s, which kills harmful microbes by heating liquids like milk and wine.