what area did the 2004 Boxing day Tsunami cause billion of dollars worth damage and had untold regional environmental effects

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!

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The answer is ocho because ocho is 8