Definition. Seeing blood in your urine can cause anxiety. While in many instances there are benign causes, blood in urine (hematuria) can also indicate a serious disorder. Blood that you can see is called gross hematuria. Urinary blood that's visible only under a microscope is known as microscopic hematuria and is found when your doctor tests your urine. Either way, it's important to determine the reason for the bleeding. Treatment depends on the underlying cause. 1  Symptoms.
Standardized earthenware plumbing pipes with broad flanges making use of asphault for preventing leakages appeared in the urban settlements of the the indus valley civiliations by 2700 B.C. Plumbing originated during the ancient civilizations such as the Greek, Roman, Persian, Indian, and Chinese civilizations as they developed public baths and needed to provide portable water, and drainage of wastes.
It began to gain major prominence in the public eye around 94-95, yes. Way back in the 60's, though, there was the Arpanet, which was used mostly in universities and technical vocations, if I'm not mistaken. The internet as we know it started around 1991, I believe. See the listed source: