What changed the nature of slavery in Africa?

What changed the nature of slavery in Africa?

The trans-Atlantic trade profoundly changed the nature and scale of slavery in Africa itself. The development of the Atlantic slave trade led to the enslavement of far greater numbers of Africans and to more intense exploitation of slave labor in Africa.

What types of materials were masks made from?

The most commonly used material for masks is wood, although a wide variety of other elements can be used, including light stone such as steatite, metals such as copper or bronze, different types of fabric, pottery, and more.

What can masks symbolize?

Masks usually represent supernatural beings, ancestors, and fanciful or imagined figures, and they can also be portraits.

When was the first face mask made?

The earliest recorded face mask-like objects in history date to the 6th century BC. Some images of people wearing cloth over their mouths were found on the doors of Persian tombs.

What was the first mask?

The oldest masks that have been discovered are 9,000 years old, being held by the Musée “Bible et Terre Sainte” (Paris), and the Israel Museum (Jerusalem). Most probably the practice of masking is much older – the earliest known anthropomorphic artwork is circa 000 years old.

Why does a surgeon wear a mask?

Surgeons and nurses performing clean surgery wear disposable face masks. The purpose of face masks is thought to be two-fold: to prevent the passage of germs from the surgeon’s nose and mouth into the patient’s wound and to protect the surgeon’s face from sprays and splashes from the patient.

Where was the surgical mask invented?

Face masks for use in surgery were developed in Europe by several physicians, including Johann Mikulicz at the University of Breslau and Paul Berger in Paris, in the late nineteenth century, as a result of increasing awareness of germ theory and the importance of antiseptic procedures in medicine.