Input: Read this: After many other more or less successful attempts with relatively weak rotating and reciprocating apparatus the Prussian Moritz von Jacobi created the first real rotating electric motor in May 1834 that actually developed a remarkable mechanical output power. His motor set a world record which was improved only four years later in September 1838 by Jacobi himself. His second motor was powerful enough to drive a boat with 14 people across a wide river. It was not until 1839/40 that other developers worldwide managed to build motors of similar and later also of higher performance.
Question: How long did it take for Jacobi's second world record to be broken?

Output: unanswerable

QUES: Prior to 1871, the government of the United States regularly entered into treaties with Native Americans but the Indian Appropriations Act of March 3, 1871 (ch. 120, 16 Stat. 563) had a rider (25 U.S.C. 71) attached that effectively ended the President's treaty making by providing that no Indian nation or tribe shall be acknowledged as an independent nation, tribe, or power with whom the United States may contract by treaty. The federal government continued to provide similar contractual relations with the Indian tribes after 1871 by agreements, statutes, and executive orders.

A rider to the Indian Appropriations Act of 1871 provided that the US government could not do what with an Indian nation?
What is the answer?
ANS: contract by treaty

QUES: This new approach liberated scientific speculation from the dogmatic restraints of Aristotelian science, and paved the way for new approaches. Particularly within the field of theories of motion great advances were made, when such scholars as Jean Buridan, Nicole Oresme and the Oxford Calculators challenged the work of Aristotle. Buridan developed the theory of impetus as the cause of the motion of projectiles, which was an important step towards the modern concept of inertia. The works of these scholars anticipated the heliocentric worldview of Nicolaus Copernicus.
Which scholars made great advances in the theories of motion?

ANS: Jean Buridan, Nicole Oresme and the Oxford Calculators

The brief peace in Europe allowed Napoleon to focus on the French colonies abroad. Saint-Domingue had managed to acquire a high level of political autonomy during the Revolutionary Wars, with Toussaint Louverture installing himself as de facto dictator by 1801. Napoleon saw his chance to recuperate the formerly wealthy colony when he signed the Treaty of Amiens. During the Revolution, the National Convention voted to abolish slavery in February 1794. Under the terms of Amiens, however, Napoleon agreed to appease British demands by not abolishing slavery in any colonies where the 1794 decree had never been implemented. The resulting Law of 20 May never applied to colonies like Guadeloupe or Guyane, even though rogue generals and other officials used the pretext of peace as an opportunity to reinstate slavery in some of these places. The Law of 20 May officially restored the slave trade to the Caribbean colonies, not slavery itself. Napoleon sent an expedition under General Leclerc designed to reassert control over Sainte-Domingue. Although the French managed to capture Toussaint Louverture, the expedition failed when high rates of disease crippled the French army. In May 1803, the last 8000 French troops left the island and the slaves proclaimed an independent republic that they called Haiti in 1804. Seeing the failure of his colonial efforts, Napoleon decided in 1803 to sell the Louisiana Territory to the United States, instantly doubling the size of the U.S. The selling price in the Louisiana Purchase was less than three cents per acre, a total of $15 million.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who was the de facto ruler of Saint-Domingue in 1801?
Ah, so.. Toussaint Louverture

Question: In the 21st century the most famous department store in Russia is GUM in Moscow, followed by TsUM and the Petrovsky Passage. Other popular stores are Mega (shopping malls), Stockmann, and Marks & Spencer. Media Markt, M-video, Technosila, and White Wind (Beliy Veter) sell large number of electronic devices. In St. Petersburg The Passage has been popular since the 1840s. 1956 Soviet film Behind Store Window ( ) on YouTube depicts operation of a Moscow department store in 1950's.
Try to answer this question if possible: What movie demonstrates the operation of department stores in the current Soviet Union?
Answer: unanswerable

Context and question: The state united behind the Plan of Ayutla and ratified the new constitution in 1855. The state was able to survive through the Reform War with minimal damage due to the large number of liberal political figures. The 1858 conservative movement did not succeed in the state even after the successful military campaign of the conservative Zuloaga with 1,000 men occupied the cities of Chihuahua and Parral. In August 1859, Zuloaga and his forces were defeated by the liberal Orozco and his forces; Orozco soon after deposed the state governor, but had to flee to Durango two months later. In the late 1860s the conservative General Cajen briefly entered the state after his campaign through the state of Jalisco and helped establish conservative politicians and ran out the liberal leaders Jesus Gonzalez Ortega and Jose Maria Patoni. Cajen took possession of the state capital and established himself as governor; he brooked no delay in uniting a large force to combat the liberal forces which he defeated in La Batalla del Gallo. Cajen attained several advantages over the liberals within the state, but soon lost his standing due to a strong resurgence of the liberal forces within the state. The successful liberal leaders Jose Maria Patoni of Durango and J.E. Munoz of Chihuahua quickly strengthened their standing by limiting the political rights of the clergy implementing the presidential decree. The state elected General Luis Terrazas, a liberal leader, as governor; he would continue to fight small battles within the state to suppress conservative uprisings during 1861.
In which year was the new constitution ratified?
Answer:
1855