Known as "rouge" before modern makeup came about in the early 20th century, blush was a popular makeup even prior to its availability at any shop or drugstore. Aside from using mulberries, strawberries and beets, women have also resorted to pinching their cheeks--as was fashionable in the Victorian age, when makeup was associated with immorality--to achieve a healthy-looking glow. Gone are the days when women would reportedly bleed themselves or even ingest arsenic for deathly pale skin contrasted sharply with rouged cheeks, but blush has evolved to stay throughout the ages.
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eHow Article: About Blush