The practice of chocolate giving began around the 1950s or early 1960s when confectionery companies in Japan started promoting the idea of women giving chocolates to men on Valentine’s Day. This marketing strategy boosted chocolate sales during a period that was traditionally not associated with gift-giving.

TeamworkMark is a high school student. Every year, his school holds a festival. For this year's festival, Mark's class wanted to do a dance performance. Mark suggested that they dance to jazz music, which he likes. At first, most of his classmates (did not agree with) him.

Nearly three-quarters of the world's maple syrup is produced in the Canadian province of Quebec, and the industry contributes hundreds of millions of dollars to the province's economy every year. Producers there are legally required to join the Federation of Quebec Maple Syrup Producers and to obey its regulations.

Around AD 550, the Ancient Pueblo people, or Ancients Puebloans, first settled the highlands of Mesa Verde in the US state of Colorado. Because of its high altitude, Mesa Verde received more rainfall than the surrounding lowlands, which were often affected by long droughts.

Some researches found that providing a pleasant educational setting can improve children’s progress in reading, writing, and math by up to 16% in a year. Factors such as amount of daylight, temperature, and indoor air quality were found to have the greatest effect.