How did the authors of the declaration of independence come up with the Grievances?

The grievances the authors of the Declaration of Independence came up with were some of the most important issues to colonists in the 18th century.

For example, arguably the largest issue of the time was being taxed without consent or representation, which is listed in the Declaration as;

"For imposing Taxes on us without our Consent"

this is a good question! i'll do some research and come back when i have the answer!

i think you may have asked this twice, but i answered one of the