Civil Rights
Movements, leaders, victories and the continuing fight for equality.
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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
Katherine Johnson’s mathematical calculations helped guide some of America’s most important early space missions while she confronted the racial and gender barriers faced by Black women in twentieth-century America.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
Protection is any measure taken to guard something against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although the mechanisms for providing protection vary widely, the basic meaning of the term remains the same. This is illustrated by an explanation found in a manual on electrical wiring: The meaning of the word protection, as used in the electrical industry, is no different to that in everyday use. People protect themselves against personal or financial loss by means of insurance as well as from injury or discomfort by the use of protective clothing. They further protect their property by the installation of security measures such as locks and/or alarm systems. Some kind of protection is a characteristic of all life, as living things have evolved at least some protective mechanisms to counter damaging environmental phenomena, such as ultraviolet light. Biological membranes such as bark on trees and skin on animals offer protection from various threats, with skin playing a key role in protecting organisms against pathogens and excessive water loss. Additional structures like scales and hair offer further protection from the elements and from predators, with some animals having features such as spines or camouflage serving exclusively as anti-predator adaptations. Many animals supplement the protection afforded by their physiology by burrowing or otherwise adopting habitats or behaviors that insulate them from potential sources of harm. Humans originally began wearing clothing and building shelters in prehistoric times for protection from the elements. Both humans and animals are also often concerned with the protection of others, with adult animals being particularly inclined to seek to protect their young from elements of nature and from predators. In the human sphere of activity, the concept of protection has been extended to nonliving objects, including technological systems such as computers, and to intangible things such as intellectual property, beliefs, and economic systems. Humans seek to protect locations of historical and cultural significance through historic preservation efforts, and are also concerned with protecting the environment from damage caused by human activity, and with protecting the Earth as a whole from potentially harmful objects from space.
A protection racket is a racketeering scheme, usually perpetrated by a criminal organization, that coerces payments on a regular basis from an individual, group, or business in exchange for agreeing to not harm them (or for purportedly "protecting" them). The threat of harm may be indirectly communicated or implied, and it may include violence, robbery, ransacking, arson, vandalism, etc. The payments are called "protection money" or a "protection fee". An organized crime group determines an affordable fee by negotiating with each of its payers to help ensure a consistent and punctual payment. Protection rackets can vary in terms of their levels of sophistication or organization. A protection racket is a form of extortion in which the racketeer manufactures the threat from which protection is then sold. The perpetrators of a protection racket may protect vulnerable targets from other dangerous individuals and groups or may simply offer to refrain from themselves carrying out attacks on the targets, and usually both of these forms of protection are implied in the racket. Due to the frequent implication that the racketeers may contribute to harming the target upon failure to pay, the protection racket is generally considered a form of extortion. In some instances, the main potential threat to the target may be caused by the same group that offers to solve it in return for payment, but that fact may sometimes be concealed in order to ensure continual patronage and funding of the crime syndicate by the coerced party. In other cases, depending on the perpetrators' level of influence with authorities and the legality or legal status of the business or target being protected, protection rackets may also offer protection against law enforcement and police involvement, especially if the perpetrators bribe or threaten local law enforcement. The protection racket mostly sells physical security. Through the credible threat of violence, the racketeers deter both third-party criminals and people in their own criminal organization from swindling, robbing, injuring, sabotaging, or otherwise harming their clients. The racket often occurs in situations and places where criminal threats to certain businesses, entities, or individuals are not effectively prevented or addressed by the prevailing system of law and order or governance, or in cases of inadequate protection by the law for certain ethnic or socioeconomic groups. Protection rackets tend to form in markets in which the law enforcement cannot be counted on to provide legal protection, because of incompetence (as in weak, corrupt, or failed states), illegality (when the targeted entity is involved in black markets), and/or because forms of government distrust exist among the entities involved. Hence, protection rackets are common in places or territories where criminal organizations resemble de facto authorities, or parallel governments. Sicily, Italy is a prominent example of this phenomenon, where the Cosa Nostra collects protection money locally and resembles a de facto authority, or a parallel government. Protection rackets are often indistinguishable in practice from extortion rackets, and generally distinguishable from social service and private security by the degree of implied threat; the racketeers themselves may threaten and attack businesses, technological infrastructure, and citizens if the payments are not made. A distinction is possible between a "pure" extortion protection racket, in which the racketeers might agree only not to attack a business or entity, and a broader protection racket offering some real private security in addition to such extortion. In either case, the racketeers generally agree to defend a business or individual from any attack by either themselves or third parties (other criminal gangs). In reality, the distinction between the two types of protection rackets is dubious, because in either case extortion racketeers may have to defend their clients against rival gangs to maintain their profits. By corollary, criminal gangs may have to maintain control of territories (turfs), as local businesses may collapse if forced to pay for protection from too many rackets, which then hurts all parties involved. Certain scholars, such as Diego Gambetta, classify criminal organizations engaged in protection racketeering as "mafia", as the racket is popular with both the Sicilian Mafia and Italian-American Mafia.
Copy protection, also known as content protection, copy prevention and copy restriction, is any measure to enforce copyright by preventing the reproduction of software, films, music, and other media. Copy protection is most commonly found on videotapes, DVDs, Blu-ray discs, HD-DVDs, computer software discs, video game discs and cartridges, audio CDs and some VCDs. It also may be incorporated into digitally distributed versions of media and software. Some methods of copy protection have also led to criticism because it caused inconvenience for paying consumers or secretly installed additional or unwanted software to detect copying activities on the consumer's computer.
Cathodic protection (CP; ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures such as long pipelines, where passive galvanic cathodic protection is not adequate, an external DC electrical power source is used to provide sufficient current. Cathodic protection systems protect a wide range of metallic structures in various environments. Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures. Another common application is in galvanized steel, in which a sacrificial coating of zinc on steel parts protects them from rust. Cathodic protection can, in some cases, prevent stress corrosion cracking.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Joe Louis.