Question: Where was the successor formally installed on December 3, 1858?
SQL: SELECT "State (class)" FROM "1-1802760-3" WHERE "Date of successors formal installation" = 'December 3, 1858';

Question: Why did the change happen in the state where the formal installation happen on February 14, 1859?
SQL: SELECT "Reason for change" FROM "1-1802760-3" WHERE "Date of successors formal installation" = 'February 14, 1859';