orignla array:
Array ( [1] => financial-system-essays [2] => white-house-essays [3] => republican-party-essays [4] => income-tax-essays [5] => great-depression-essays [6] => unemployment-rate-essays [7] => race-essays [8] => obama-essays [9] => economy-essays [10] => business-essays [11] => connections-essays [12] => reaction-essays [13] => position-essays [14] => people-essays [15] => destiny-essays [16] => bank-essays [17] => population-essays [18] => tenure-essays [19] => authority-essays )
remove array:Array ( [1] => financial-system-essays [2] => white-house-essays [3] => republican-party-essays [4] => income-tax-essays [5] => great-depression-essays [6] => unemployment-rate-essays [7] => race-essays [8] => obama-essays [9] => economy-essays [10] => business-essays [11] => connections-essays [12] => reaction-essays [13] => position-essays [15] => destiny-essays [16] => bank-essays [17] => population-essays [18] => tenure-essays [19] => authority-essays )