The stock market crash of 1929 – considered the worst economic event in world history – began on Thursday, October 24, 1929, with skittish investors trading a record 12.9 million shares. On October 28, dubbed “Black Monday,” the Dow Jones Industrial Average plunged nearly 13 percent. The market fell another 12 percent the next day, “Black Tuesday.” While the crisis send shock waves across the financial world, there were numerous signs that a stock market crash was coming
        
             
        
        
        
Answer:
ANCIENT MAPS HAVE NO LINES ODF LONGITUDE AND LATITUDE WERE MADE ACCORDING TO LAND SURVAY AND ACCORDING TO THEIR SHAPES.
Explanation:
There were no lines of longitude on ancient maps (no precise clocks to calculate it). ... Modern maps have just a basic northern pointer (sometimes not even that). Ancient maps possibly used paper and ink made by hand. Modern maps on high quality paper are mass produced.
 
        
             
        
        
        
D I think. Because they make laws.