Over the centuries, brides continued to dress in a manner befitting their social status---always in the height of fashion, with the richest, boldest materials money could buy. The poorest of brides wore their best church dress on their wedding day. The amount of material a wedding dress contained also was a reflection of the bride's social standing and indicated the extent of the family's wealth to wedding guests.
Wedding dresses have traditionally been based on the popular styles of the day. For example, in the 1920's wedding dresses were typically short in the front with a longer train in the back and were worn with cloche-style wedding veils. This tendency to follow current fashions continued until the late 1940's, when it became popular to revert to long, full-skirted designs reminiscent of the Victorian era. The trend has continued until today.
Today, western wedding dresses are usually white, though 'wedding white' includes creamy shades such as eggshell, ecru and ivory. One of the first women to wear white at her wedding was Mary Queen of Scots, when she married François II of France. However, white was not then a tradition but rather a choice and one considered inauspicious, since white was the official colour of mourning in France at the time.
White dresses did not become a popular option until 1840, after the marriage of Queen Victoria to Albert of Saxe-Coburg. Victoria had worn a white gown for the event so as to incorporate some lace she owned. The official wedding portrait photograph was widely published, and many other brides opted for a similar dress in honor of the Queen's choice. The tradition continues today in the form of a white wedding, though prior to the Victorian era a bride was married in any color except black (the color of mourning) or red (which was connected with prostitutes). Later, many people assumed that the color white was intended to symbolize virginity, though this had not been the original intention. (It was the color blue that was connected to purity.) Today, the white dress is understood merely as the most traditional and popular choice for weddings, not necessarily a statement of virginity. http://en.wikipedia.org