Early Modern Period
In the 1670s, the French devised the copper pontoon; after this point, rivers and canals ceased to present significant obstacles. The early modern period in pontoon use was dominated by the wars of the 18th and 19th centuries during which the art and science of pontoon bridging barely changed.
Read more about this topic: Pontoon Bridge
Famous quotes containing the words early, modern and/or period:
“Very early in our childrens lives we will be forced to realize that the perfect untroubled life wed like for them is just a fantasy. In daily living, tears and fights and doing things we dont want to do are all part of our human ways of developing into adults.”
—Fred Rogers (20th century)
“Families have always been in flux and often in crisis; they have never lived up to nostalgic notions about the way things used to be. But that doesnt mean the malaise and anxiety people feel about modern families are delusions, that everything would be fine if we would only realize that the past was not all its cracked up to be. . . . Even if things were not always right in families of the past, it seems clear that some things have newly gone wrong.”
—Stephanie Coontz (20th century)
“We are now going through a period of demolition. In morals, in social life, in politics, in medicine, and in religion there is a universal upturning of foundations. But the day of reconstruction seems to be looming, and now the grand question is: Are there any sure and universal principles that will evolve a harmonious system in which we shall all agree?”
—Catherine E. Beecher (18001878)