Revelers descended on the streets of Manhattan Saturday morning for the world’s largest St. Patrick’s Day Parade — to celebrate the Irish and immigration.

Grand Marshal Brian O’Dwyer, an activist and immigration lawyer who founded the Emerald Isle Immigration Center in Woodside, Queens, marched up Fifth Avenue in the 257-year-old parade with five Latino immigrants whom he has represented. 

NYC's event, dating back to 1762, is the world's largest St. Patrick's Day parade.

Credit: Todd Maisel

Lisa, left, Lauren, center, and Brendan McKenzie enjoy the 2019 annual St. Patrick's Day parade on March 16, 2019 in New York City. The New York City St. Patrick's Day parade, dating back to 1762, is the world's largest St. Patrick's Day celebration.

Credit: Todd Maisel

Thousands took part in this year's St. Patrick's Day Parade in Manhattan. Celebrants watch the parade.

Credit: Todd Maisel

NYPD officer Joe Gallagher and his son Hudson, 6-months, are among the thousands of spectators at the St. Patrick's Day parade in Manhattan on Saturday, March 16, 2019

Credit: Todd Maisel

Young Patrick McAvoy, his dad a member of FDNY Rescue 2, learns to play the drums for the FDNY Pipes and Drums as they wait their turn to march in the 2019 annual St. Patrick's Day parade on March 16, 2019 in New York City. The New York City St. Patrick's Day parade, dating back to 1762, is the world's largest St. Patrick's Day celebration.

Credit: Todd Maisel

Karen Cvonick of Queens, New York and Christine Peddington of Hempstead, Long Island, watch the 2019 annual St. Patrick's Day parade on March 16, 2019 in New York City. The New York City St. Patrick's Day parade, dating back to 1762, is the world's largest St. Patrick's Day celebration.

Credit: Todd Maisel

Thousands gather for the 2019 annual St. Patrick's Day parade on March 16, 2019 in New York City. The New York City St. Patrick's Day parade, dating back to 1762, is the world's largest St. Patrick's Day celebration.

Credit: Todd Maisel

Thousands gather for the 2019 annual St. Patrick's Day parade on March 16, 2019 in New York City. The New York City St. Patrick's Day parade, dating back to 1762, is the world's largest St. Patrick's Day celebration.

Credit: Todd Maisel

Thousands gather for the 2019 annual St. Patrick's Day parade on March 16, 2019 in New York City. The New York City St. Patrick's Day parade, dating back to 1762, is the world's largest St. Patrick's Day celebration.

Credit: Todd Maisel

Grand Marshall Brian J. O'Dwyer, center, is joined by a group of  Latino clients of the Emerald Isle Immigration Center as they march in this year's St. Patrick's Day parade in Manhattan on Saturday, March 16, 2017.

Credit: Todd Maisel

he NYPD Emerald Society pipe band makes their way down Fifth Avenue during the annual St. Patrick's day Parade in Manhattan on Saturday, March 16, 2017..

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