1892: Nguyen Feb 19, 2020

Up to 40% of people in Vietnam have the last name Nguyen. This is actually originally Chinese, but its commonality is entrenched in Vietnamese history since the 13th century when the usurped Ly dynasty were forced to change their names to Nguyen. Over the next 2 or so centuries, another 2 collapsed dynasties changed their names to Nguyen. Aside from many other nobles who were given the name Nguyen, many criminals took it up to blend in. Other popular names in Vietnam mostly come from old dystic names as well.

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