Who is we MLK is referring to and in who's shadow are 'we' standing in, and to what was MLK alluding to in the opening of the first paragraph of MKL speech i have a dream

Martin Luther King, Jr., who delivered what became the most famous speech of the entire civil rights era, the “I Have a Dream” speech, which envisioned a world in which people were judged not by the color of their skin, but by the content of their character.

Explanation:

Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon of hope to millions of slaves, who had been seared in the flames of whithering injustice.

Explanation:

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