<span>The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, with the origin of plants.
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A paradox is a statement or a concept that seems to be self-contradictory. In Logic, a paradox is a statement that contradicts itself. In everyday language, a paradoxical statement might only seem contradictory, it could be a sound. For example:<span>I always lie. (Logic)(This would be accepted as a paradox in the Logic arena. If it's true, then it's not true.)</span>
Stokely Carmichael<span>The first popular use of the term "Black Power" as a political and racial slogan was by Stokely Carmichael (later known as Kwame Ture) and Willie Ricks (later known as Mukasa Dada), both organizers and spokespersons for the Student Nonviolent Coordinating Committee (SNCC).</span>
i remember putting in "both have high per capital income" but i don't know if I got that right