There was a time when a C meant average. The average GPA at four-year colleges and universities has risen from 2.52 in the 1950s to 3.11 in 2006. And according to Stuart Rojstaczer, a former Duke University professor and founder of GradeInflation.com, GPAs only keep rising. At some colleges, Rojstaczer says, over 50% of the grades given are A's.
Trench warfare was caused by an advance in defensive weaponry. The machine gun was too heavy to be used as a mobile weapon, and therefore was placed into a fixed position. Barbed and concertina wire was also heavily used.
Trench warfare began on the Aisne in September 1914, and after the âRace to the Seaâ, with both armies extending their flanks northwards, spread from the Swiss border to the North Sea. MORE ON THIS. http://www.answers.com/topic/trench-warf...