Southern state governments restricted the rights of former slaves by which established virtual slavery.

O refusing to pay war debts.

O holding constitutional conventions,

O refusing to pass the Thirteenth Amendment

O passing black codes

Southern state governments restricted the rights of former slaves by passing black codes.

i think it was   tsar alexander ii

a yes vote means: the legislature, with a two-thirds vote, could change daylight saving time if the change is allowed by the federal government. absent any legislative change, california would maintain its current daylight saving time period