Dendrochronology is the science of determining age by examining growth rings of trees.
Congress' authority to make laws prohibiting discrimination in employment comes from the "implied powers" that it is granted by the Constitution, since these are not explicitly cited.
Militarism is important because military is esential in enforcing international law. Without militaries countries would be helpless if they needed to defend their countries. They are also needed for fighting for positive societal change.
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Muhammad's earliest teachings were marked by his insistence on the oneness of God (Quran 112:1), the denunciation of polytheism (Quran 6:19), belief in the Last judgment and its recompense (Quran 84:1–15), and social and economic justice (Quran 89:17–20).
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