Is this chest buried in sand?

Galileo Galilei published the Starry Messenger in 1609/1610 which showed a bunch of space discoveries he had found using his homemade telescope. What century were the years 1609 and 1610 in?

How many years _________ did you start going to school?

The Aztec Civilization lasted ____ many years in Mexico. From about 1325 to 1521.

___ December 12th, 1903 the Wright brothers flew the first airplane. The flight lasted 12 seconds.

Amazon, Apple, and Walmart are examples of huge, billion dollar __________.

In 1969 two Americans landed on the ________ for the first time.

What is this an image of?

Ibn Battuta lived from 1304 - 1369. What century did he live in?

The American civil war lasted _____ 1861 ___ 1865.

___ 1985 the first nintendo console was released.

There are many beautiful places in our world where ________ is very popular.

Madagascar, India, Nepal, Argentina, and Canada are examples of __________.

Escape is the same thing as being trapped.

Egypt is known as the oldest unified country in the world. It become a country approximately 5,000 years ago around the year 3100. Would the year 3100 be AD (after death) or BC (before Christ)?

Vikings from Northern Europe traveled to North America around the year 1004 AD, What century is this?

Native Americans have lived in North America for approximately 15,000 years. Would this date be AD (After death) or BC (before Christ)?

America first became a country almost 300 years ago on July 4th, 1776. What century did America become a country?

A theory is an idea that tries to explain something.

This ______ should help us get closer to solving the mystery.