1
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0.The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the smallest possible difference between two distinct natural numbers.
The unique mathematical properties of the number have led to its unique uses in other fields, ranging from science to sports. It commonly denotes the first, leading, or top thing in a group. Provided by Wikipedia
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United States. Continental Army. New Hampshire Regiment, 1st.
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Creator:
United States. Army. Pennsylvania Light Artillery Regiment, 1st
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Manuscript
163
Author:
Prim y Prats, Juan, marqués de los Castillejos, 1814-1
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Published Materials
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164
Author:
Paris, Louis Philippe Albert d'Orléans, comte de, 1838-1
Published 1875
Published 1875
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Minto, Gilbert Elliot-Murray-Kynynmound, Sir, 1st earl of, 1751-1814.
Published 1874
Published 1874
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“...(Neil Ripley) .w 1n....”
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170
Author:
Śaṅkarācārya.
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“...Upanishads.1...”
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171
Author:
Guyer, Eduard.
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“...Switzerland)1...”
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Author:
Penn, William, 1644-1718.
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“...1 Smith,...”
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174
Author:
Guyer, Eduard.
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“...Switzerland)1...”
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176
Published 1890
“...Electrical Union No. 1 of Pennsylvania...”
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“...West Indies.1...”
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