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7 'facts' you learned in school that are no longer true

Abby JacksonMar 17, 2017, 01:07 IST

A student raises her hand in a geography lesson at a secondary school.Getty Images/Peter Macdiarmid

Over time, even facts we consider steadfast truths can change. People used to think doctors could forgo washing their hands before surgery. Knowledge is ever-evolving.

The seven ideas below probably changed since your school days. Re-educate yourself.