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Explanation:Manorialism and feudalism are two systems that remained entrenched in European medieval culture for hundreds of years. ... Feudalism reflected the relationship between nobles as they traded land for military service. Lords awarded land to vassals, and the vassals provided military support for the lord in return.
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Sensors that measure a variety of essential soil properties on the go are being developed. These sensors can be used either to control variable rate application equipment in real-time or in conjunction with a Global Positioning System (GPS) to generate field maps of particular soil properties. Depending on the spacing between passes, travel speed, and sampling and/or measurement frequency, the number of measurement points per acre varies; however, in most cases, it is much greater than the density of manual grid sampling. The cost of mapping usually is reduced as well.
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In 1783 in Britain, and most of the world, slavery was an accepted and legal practice.
Sick slave being thrown overboardIn that year, a case was heard before the British courts. The insurer of the slave ship Zong, which carried African slaves from Africa to the Americas, refused to pay a claim for “lost cargo”. That lost cargo was more than 100 sick slaves that had been thrown overboard by the ship’s captain, so that their value could be claimed against the insurers. If the slaves had died of natural causes (their sickness), no claim could be brought against the insurers. The insurers won their case. Efforts to bring murder charges against the ship owners failed. The slaves were not human beings they were goods.
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It provides oxygen for 18 people.