During this time, the most common cause of irregular menstrual cycles is immaturity of the HPO axis, but additional etiologies should be considered, including pregnancy, PCOS, hypothyroidism, hyperprolactinemia, and functional hypothalamic dysfunction.
1 Cubism was invented around 1907 in Paris by Pablo Picasso and Georges Braque. 2  Cubism was the first abstract style of modern art. 3  A Cubist painting ignores the traditions of perspective drawing and shows you many views of a subject at one time.4  The Cubists introduced collage into painting. Cubism was the first abstract style of modern art. 2  A Cubist painting ignores the traditions of perspective drawing and shows you many views of a subject at one time. 3  The Cubists introduced collage into painting.
Cubism. Key Dates: 1908-1914. The Cubist art movement began in Paris around 1907. Led by Pablo Picasso and Georges Braque, the Cubists broke from centuries of tradition in their painting by rejecting the single viewpoint.Instead they used an analytical system in which three-dimensional subjects were fragmented and redefined from several different points of view simultaneously.ed by Pablo Picasso and Georges Braque, the Cubists broke from centuries of tradition in their painting by rejecting the single viewpoint. Instead they used an analytical system in which three-dimensional subjects were fragmented and redefined from several different points of view simultaneously.