NEW YORK (AP) - It's going to be a sea of green in New York City for the annual St. Patrick's Day Parade.
  
The parade brings together tens of thousands of marchers in celebration of Irish heritage.
  
It's one of the city's oldest events, with its earliest iterations dating back more than 250 years and its current format going back to the mid-1800s.
  
This year's event is taking place as Ireland and the rest of the European Union are waiting to see how the United Kingdom handles Brexit, which had been scheduled for March 29.
  
This week, British lawmakers voted to seek to delay Brexit for at least three months.
  
The parade goes up Fifth Avenue over the course of six hours, with the reviewing stand at St. Patrick's Cathedral.

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