Louisville ( , or ) is the largest city in the Commonwealth of Kentucky and the 29th-most populous city in the United States. It is one of two cities in Kentucky designated as first-class, the other being the state's second-largest city of Lexington. Louisville is the historical seat and, since 2003, the nominal seat of Jefferson County. 

Louisville was founded in 1778 by George Rogers Clark and is named after King Louis XVI of France, making Louisville one of the oldest cities west of the Appalachian Mountains. Sited beside the Falls of the Ohio, the only major obstruction to river traffic between the upper Ohio River and the Gulf of Mexico, the settlement first grew as a portage site. It was the founding city of the Louisville and Nashville Railroad, which grew into a system across 13 states. Today, the city is known as the home of the Kentucky Derby, Kentucky Fried Chicken, the University of Louisville and its Louisville Cardinals athletic teams, Louisville Slugger baseball bats, and three of Kentucky's six "Fortune" 500 companies. Its main airport is also the site of United Parcel Service's worldwide air hub. 

Since 2003, Louisville's borders have been the same as those of Jefferson County because of a city-county merger. The official name of this consolidated city-county government is the Louisville/Jefferson County Metro Government, abbreviated to Louisville Metro. Despite the merger and renaming, the term "Jefferson County" continues to be used in some contexts in reference to Louisville Metro, particularly including the incorporated cities outside the "balance" which make up Louisville proper. The city's total consolidated population as of the 2014 census estimate was 760,026. However, the balance total of 612,780 excludes other incorporated places and semiautonomous towns within the county and is the population listed in most sources and national rankings.
what term is used to referece louisville metro?
when was is founded?
by who?
named after who?
is this the youngest city?
How many fourtune 500 companies doe it have?
where is it in relation to the mountains?
how many states did the system spread across?
have the boarders changed?
what is louisville home to?
is it home to any thing else?
what is it the main site of?
what rank of population does it have?
is it the smallest city in commonwealth of kentucky?
how many first class cities are there
when was the Census?
what was the esitimated population?
what was excluded?
what other nature landmark is the city close to?
Louisville/Jefferson County Metro Government
Louisville/Jefferson County Metro Government,
in 1778
Louisville was founded in 1778
by George Rogers Clark
 by George Rogers Clark 
King Louis XVI of France
 is named after King Louis XVI of France
no
making Louisville one of the oldest cities west 
three
and three of Kentucky's six 
west
west of the Appalachian Mountains
across 13 states
a system across 13 states.
in 2003, yes
Since 2003, Louisville's borders have been the same as those of Jefferson County
the Kentucky Derby
the home of the Kentucky Derby
Kentucky Fried Chicken
home of the Kentucky Derby, Kentucky Fried Chicken,
United Parcel Service's worldwide air hub
Its main airport is also the site of United Parcel Service's worldwide air hub. 
29th-most populous city in the United States
29th-most populous city in the United States
no
Louisville ( , or ) is the largest city in the Commonwealth
there are two cities in Kentucky designated as first-class
 two cities in Kentucky designated as first-class
2014
 2014 census 
760,026
estimate was 760,026
it excludes other incorporated places and semiautonomous towns within the county
 excludes other incorporated places and semiautonomous towns within the county
the Falls of the Ohio
the Falls of the Ohio