What did texas have to do under congressional reconstruction to be readmitted to the union

They were to adopt the Fourteenth and Fifteenth amendments and select United States senators in preparation for readmission to the Union.  On March 30, 1870, President Grant signed the act that readmitted Texas to the Union and ended Congressional Reconstruction.

the answer is a, salt plain

george calvert wanted maryland to be a colony where could live safely. because georgia's founders wanted a colony of small farms rather than large plantations, they originally banned under british law in the 1700s, people who owed money could be