The standards for the first algebra textbooks that endured for centuries are the work of

Al- Khwarizmi is the correct answer.

Explanation:

Al Khwarizmi was Persian mathematician and astronomer. He was born around 800 AD and died in 850 AD during the Abbasid Empire. His work such as Compendious Book on Calculation by Completion and Balancing and about Hindu numerals were famous throughout Europe. He created astronomical tables for calculating the position of eclipses and planets. His book was widely read by the European mathematicians. In his book AL-Jabr Wal' Muqibla, he introduced his own numeral system and Arabic numerals. His books were translated into latin and greek  and most of these books were named "So said Algorizmi". The word algorithm is derived from Algorizmi and algebra is derived from Al-Jabr. He used to work at the House of Wisdom and was most famous mathematicians of medieval times.

the progressive era is a period of widespread social activism and political reform across the united states that spanned from the 1890s to the 1920s.[1] the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.

the movement primarily targeted political machines and their bosses. by taking down these corrupt representatives in office, a further means of direct democracy would be established. they also sought regulation of monopolies (trust busting) and corporations through antitrust laws, which were seen as a way to promote equal competition for the advantage of legitimate competitors.

many progressives supported prohibition of alcoholic beverages, ostensibly to destroy the political power of local bosses based in saloons, but others out of a religious motivation. at the same time, women's suffrage was promoted to bring a "purer" female vote into the arena.a third theme was building an efficiency movement in every sector that could identify old ways that needed modernizing, and bring to bear scientific, medical and engineering solutions; a key part of the efficiency movement was scientific management, or "taylorism".

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