// todo need optimize like in event.jsp. Add indexing or not indexing this page. Se crean principios y normas, se integra el concepto de marketing (jan 31, 1920 – feb 19, 1935) (Timeline)
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Se crean principios y normas, se integra el concepto de marketing (jan 31, 1920 – feb 19, 1935)

Added to timeline:

6 Nov 2018

Date:

jan 31, 1920
feb 19, 1935
~ 15 years