Indentured servants first arrived in America in the decade following the settlement of Jamestown by the Virginia Company in 1607. The idea of indentured servitude was born of a need for cheap labor.

Ventricular fibrillation (VFib or VF) and ventricular tachycardia (v-tach or VT) are two types of heart arrhythmia that occur in the heart’s lower chambers, called the ventricles. The ventricles ...