<span>Muhammad ibn Musa
al-Khwarizmi was a mathematician who wrote an algebra textbook that was used as
the standard for centuries, presented the very first systematic solution of the
linear and quadratic equations in Arabic, and wrote about astronomy and
astrology. He was even known as one of the fathers of algebra.</span>
Uncle toms cabin showed the horrors of slavery and and abolitionists used this as a rallying cry for their cause. It brought in new abolitionists to the cause. T also held up their beliefs and that their ideals would bring actual change.
