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  2. Precursor (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Precursor_(chemistry)

    In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound. In biochemistry , the term "precursor" often refers more specifically to a chemical compound preceding another in a metabolic pathway , such as a protein precursor .

  3. History of Texas (1845–1860) - Wikipedia

    en.wikipedia.org/wiki/History_of_Texas_(1845–1860)

    The first railroad built in Texas is called the Harrisburg Railroad and opened for business in 1853. [21] In 1854, the Texas and Red River telegraph services were the first telegraph offices to open in Texas. [21] The Texas cotton industry in 1859 increased production by seven times compared to 1849, as 58,073 bales increased to 431,645 bales. [22]

  4. Precursor chemicals - Wikipedia

    en.wikipedia.org/wiki/Precursor_chemicals

    Drug precursors, also referred to as precursor chemicals or simply precursors, are substances used to manufacture illicit drugs. Most precursors also have legitimate commercial uses and are legally used in a wide variety of industrial processes and consumer products, such as medicines, flavourings, and fragrances.

  5. Precursor - Wikipedia

    en.wikipedia.org/wiki/Precursor

    Precursor (chemistry), a compound that participates in the chemical reaction that produces another compound; Precursor (physics), a phenomenon of wave propagation in dispersive media; Precursor in the course of a disease, a state preceding a particular stage in that course; Precursor cell (biology), a unipotent stem cell

  6. History of Texas - Wikipedia

    en.wikipedia.org/wiki/History_of_Texas

    The City in Texas: A History (University of Texas Press, 2015) 342 pp. Mendoza, Alexander, and Charles David Grear, eds. Texans and War: New Interpretations of the State's Military History 2012 excerpt; Scott, Robert (2000). After the Alamo. Plano, TX: Republic of Texas Press. ISBN 978-0-585-22788-7.

  7. Texas annexation - Wikipedia

    en.wikipedia.org/wiki/Texas_annexation

    Texas conventions in 1832 and 1833 submitted petitions for redress of grievances to overturn the restrictions, with limited success. [29] In 1835, an army under Mexican President Santa Anna entered its territory of Texas and abolished self-government. Texians responded by declaring their independence from Mexico on March 2, 1836.

  8. How has history's ranking of presidents changed over time? - AOL

    www.aol.com/news/2015-11-26-how-has-historys...

    Wilson also signed the 19th Amendment, which granted women the right to vote, and won a Nobel Peace Prize for his work promoting the League of Nations, a precursor to the United Nations. #28 ...

  9. Predecessor - Wikipedia

    en.wikipedia.org/wiki/Predecessor

    Predecessor may refer to: A holy person announcing the approaching appearance of a prophet, see precursor; Predecessor (graph theory), a term in graph theory; The predecessor problem, a problem in theoretical computer science; Predecessor, a video game