From an Irish perspective Lincoln was a great president who did many great things for all of his people no matter race or creed, the vastness of the statue symbolises the stature of the man's ideology
The 16th Prez was memorialized because of the Emancipation Proclamation speech. The fact that slavery would have ended for economic reasons, Lincoln is known for "ending slavery".
In memoriam of Abraham Lincoln who led the US through the civil war, preserved the union, and paved the way for the abolition of slavery.
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