Chopin also endowed popular dance forms with a greater range of melody and expression. Chopin's mazurkas, while originating in the traditional Polish dance (the mazurek), differed from the traditional variety in that they were written for the concert hall rather than the dance hall; "it was Chopin who put the mazurka on the European musical map." The series of seven polonaises published in his lifetime (another nine were published posthumously), beginning with the Op. 26 pair (published 1836), set a new standard for music in the form. His waltzes were also written specifically for the salon recital rather than the ballroom and are frequently at rather faster tempos than their dance-floor equivalents.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was Chopin responsible for making popular with Euorpeans?
Ah, so.. the mazurka

During the summer growing season, phosphate is at a high level. It has a vital role in the breakdown of the sugars manufactured by chlorophyll. But in the fall, phosphate, along with the other chemicals and nutrients, moves out of the leaf into the stem of the plant. When this happens, the sugar-breakdown process changes, leading to the production of anthocyanin pigments. The brighter the light during this period, the greater the production of anthocyanins and the more brilliant the resulting color display. When the days of autumn are bright and cool, and the nights are chilly but not freezing, the brightest colorations usually develop.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): At which period of the year are phosphates high?
Ah, so.. the summer growing season

The first appearance of the term 'affirmative action' was in the National Labor Relations Act, better known as the Wagner Act, of 1935.:15 Proposed and championed by U.S. Senator Robert F. Wagner of New York, the Wagner Act was in line with President Roosevelt's goal of providing economic security to workers and other low-income groups. During this time period it was not uncommon for employers to blacklist or fire employees associated with unions. The Wagner Act allowed workers to unionize without fear of being discriminated against, and empowered a National Labor Relations Board to review potential cases of worker discrimination. In the event of discrimination, employees were to be restored to an appropriate status in the company through 'affirmative action'. While the Wagner Act protected workers and unions it did not protect minorities, who, exempting the Congress of Industrial Organizations, were often barred from union ranks.:11 This original coining of the term therefore has little to do with affirmative action policy as it is seen today, but helped set the stage for all policy meant to compensate or address an individual's unjust treatment.[citation needed]
If it is possible to answer this question, answer it for me (else, reply "unanswerable"):  Who did employers routinely hire?
Ah, so..
unanswerable