How President Thomas Jefferson did it . . . in Two-Years! In President Thomas Jefferson's hierarchy of priorities, his first priority of business as President was the establishment of a wise and frugal Government, which shall restrain men from injuring one another.. But which would otherwise leave them alone to regulate their own affairs..
Discoloration where a ring touches your skin is due to a combination of factors: the metal of the ring, the chemical environment on your skin and your body's immune response to the ring. It's a common misconception that only cheap rings can turn your finger green. Inexpensive rings commonly are made using copper or a copper alloy, which reacts with oxygen to form copper oxide, or verdigris, which is green. It's not harmful and wears away a few days after you stop wearing the ring. However, fine jewelry also can cause discoloration of your finger. Silver rings can turn your finger green or black. Silver reacts with acids and air to tarnish to a black color. Sterling silver usually contains about 7% copper, so you can get the green discoloration too.
Minor fingernail and toenail problems are common. At one time or another, almost everyone has caught a nail on something, causing it to rip, or has smashed a finger in a door, leaving blood under the nail. These kinds of injuries can be quite painful but are usually not serious. It is common for a nail to turn black after an injury. 2  The black or purple-black color is caused by blood under the nail and will go away as the injury heals. 3  Black, brown, or purple discoloration under a nail that has not been injured may be caused by melanoma.