The Crusades continued off and on for approximately What astronomical computer was used for determining location?

Explanation is in the file

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Explanation:

Dear so and so,

Many colonists and myself are outraged by these new "rules" you have placed upon us. Not only are British troops moving into our homes but they are taxing us on common goods such as imports of paper, paint, lead, glass, and tea. We already are struggling to make money with all of this fighting, and now we cannot return home to a nice cup of tea because it is so expensive. I demand more representation in Parliament for I cannot be the only one who thinks such of your laws.