where was the first world cup held?
Uruguay
FIFA World Cup
With Uruguay now two-time official football world champions and to celebrate their centenary of independence in 1930, FIFA named Uruguay as the host country of the inaugural World Cup tournament. 
how many times has the host nation won the world cup Brazil has won five times. what sports is the cup related to? Football when did this cup begin? 1930 which organization arranges this tournament? FIFA what is the eligibility criteria to compete for this cup? A qualifying tournament is played. did it face any corruption issues? Yes, in 2015 it faced allegations and criminal charges of bribery, fraud and money laundering.
wiki:7704204
FIFA World Cup [SEP] World Cups before World War II
Due to the success of the Olympic football tournaments, FIFA, with President Jules Rimet as the driving force, again started looking at staging its own international tournament outside of the Olympics. On 28 May 1928, the FIFA Congress in Amsterdam decided to stage a world championship itself. With Uruguay now two-time official football world champions and to celebrate their centenary of independence in 1930, FIFA named Uruguay as the host country of the inaugural World Cup tournament. The national associations of selected nations were invited to send a team, but the choice of Uruguay as a venue for the competition meant a long and costly trip across the Atlantic Ocean for European sides.