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Archaeological Bulletin 38: Peru found the earliest observatory on the American continent to date (Changiro Chankillo) dating back 2,300 years.

author:Ke Shengyu

Archaeological Bulletin 38: Peru found the earliest observatory on the American continent to date (Changiro Chankillo) dating back 2300 years.

Archaeological Bulletin 38: Peru found the earliest observatory on the American continent to date (Changiro Chankillo) dating back 2,300 years.
Archaeological Bulletin 38: Peru found the earliest observatory on the American continent to date (Changiro Chankillo) dating back 2,300 years.
Archaeological Bulletin 38: Peru found the earliest observatory on the American continent to date (Changiro Chankillo) dating back 2,300 years.
Archaeological Bulletin 38: Peru found the earliest observatory on the American continent to date (Changiro Chankillo) dating back 2,300 years.

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