Diseases that cause Hyper-excitability. Peripheral nerve hyperexcitability (PNH) is any disorders associated with twitching spasms, spontaneous muscular activities, facial tics etc.iseases that cause Hyper-excitability. Peripheral nerve hyperexcitability (PNH) is any disorders associated with twitching spasms, spontaneous muscular activities, facial tics etc.
On April 6, 1652 the first white people (Dutch) arrived in South Africa to establish a settlement at the Cape. Their purpose, initially, was not to colonize the area, but to s â¦ upply fresh food for the men on the Dutch ships sailing on the long route between Europe and India.
Time Line. 1  Late August 1619 - The White Lion, captained by John Colyn Jope, arrives at Point Comfort, where Jope sells 20. and odd Negroes in exchange for food. These are the first Africans to enter the Virginia colony. 2  1621 - An enslaved African named Antonio arrives in Virginia aboard the James.