The cause of development in the articles of agreement is that Hughs and Roberts have agreed and bind themselves to work for Bailey.
An article of agreement simply state a proposed clause and there's a time frame attached for the contract.
In this case, the purpose of the excerpt is to illustrate the contract that was made by Cooper Hughs and Charles Roberts with Isham G. Bailey in Mississippi, 1867.
The historical situation of the excerpt is significant for a historical argument about the effect of Reconstruction as it showed how the rights of people are taken from them and the need to address the inequality.
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