// todo need optimize like in event.jsp. Add indexing or not indexing this page. Albert Einstein he invented photoelectric effect (mar 14, 1917 – jan 1, 1921) (Timeline)
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Albert Einstein he invented photoelectric effect (mar 14, 1917 – jan 1, 1921)

Added to timeline:

6 Dec 2017

Date:

mar 14, 1917
jan 1, 1921
~ 3 years and 9 months