Indiana Mammoth Internal Improvement Act
... that 10,000 people were employed in the 1830s simply to build canals by the Indiana Mammoth Internal Improvement Act?
... that 10,000 people were employed in the 1830s simply to build <a href="./Canal" id="mwC44" rel="mw:WikiLink" title="Canal">canals</a> by the <b id="mwC48"><a href="./Indiana_Mammoth_Internal_Improvement_Act" id="mwC5A" rel="mw:WikiLink" title="Indiana Mammoth Internal Improvement Act">Indiana Mammoth Internal Improvement Act</a></b>?