Why did southern states enact or make the black codes

Though the constitution dictates that the vice president is the leader of the senate the day-to-day leadership falls to what position

When does a metropolitan area become a megalopolis?

What would be the most relevant question to ask to find out why tutankhamen died? what was tutankhamen’s age when he died? was a doctor with tutankhamen at his death? why was tutankhamen mummified after his death? did tutankhamen’s body have evidence of disease?