dietary supplement

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omega-3 fatty acid dietary supplement

echinacea (Echinacea purpurea)

Saint-John's-wort

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Hemp (Cannabis sativa).

9 Mind-Altering Plants

Hindu Holi Festival celebrations with colored water, powder and colorful flower petals thrown over celebrants at a Hindu temple in Mathura, Uttar Pradesh, India on March 24, 2021.

Holi: Festival of Colors

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

Calendar showing the month of February

Why Are There Only 28 Days in February?

Calendar marking march 15th

22 Questions About Time and Timekeeping Answered

Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.

What Is the Emoluments Clause?

Moonrise over Tucson, Arizona

Why Doesn’t Arizona Observe Daylight Saving Time?

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omega-3 fatty acid dietary supplement

echinacea (Echinacea purpurea)

Saint-John's-wort

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Key People

James Lind, engraving by I. Wright after a portrait by Sir George Chalmers, 1783

James Lind

British physician

George Richards Minot

George Richards Minot

American physician

George H. Whipple

George H. Whipple

American pathologist

William P. Murphy

American physician

Sir Gilbert Blane, 1st Baronet

Scottish physician