A serf is an agricultural laborer bound to the land of the nobility they work for (part of feudalism). It has been used throughout many civilizations up until about the 20th century.
Answer: The numeral 20
Explanation:
For the Maya, the basic unit of time, a day, was called a kin. In the second order, 20 kins made up a uinal. In a vigesimal system the third order would be 20 uinals but, instead, 18 uinals made up a tun. Thus a tun was 360 kin (days)
Southern states led to the establishment of the confederacy & ultimately the Civil War. it was the most serious movement in the us and was defeated while the union armies defected the Confederate armies in the civil was, in the year 1861-1865
Henry Wilmont........................................