Answer:
April 1865
Robert E. Lee surrendered at Appomattox in April 1865. The freedom promised by the proclamation — and the official legal end of slavery — did not occur until the ratification of the 13th Amendment on Dec. 6, 1865.
Explanation:
4973
Drift and Hysteresis Effects on AlN/SiO2 Gate pH Ion-Sensitive Field-Effect Transistor
Jun
The candidate had to be trained as a scholar and then pass a series of written examinations. The Chinese civil service system, established in 124 B.C.E., required potential officials to be trained as scholars and then pass rigorous examinations to qualify for office.