Parades, picnics, and lessons in history were offered Saturday to commemorate Juneteenth in the US, a day that carried even more significance after Congress and President Joe Biden created a federal holiday to observe the end of slavery.

A new holiday was “really awesome. It’s starting to recognize the African American experience,” said Detroit artist Hubert Massey, 63. “But we still have a long way to go.”

In Detroit, which is about 80% Black, students from University Prep Art & Design School dodged the rain to repaint Massey’s block-long message, “Power to the People,” which was created last year on downtown Woodward Avenue.

The ‘o’ in “Power” was a red fist in memory of George Floyd and other victims of excessive force by police, Massey said.

“We did the original,” said Olivia Jones, 15, leaning on a long paint roller. “It’s important that we return and share that same energy.”

Juneteenth commemorates June 19, 1865, when Union soldiers brought the news of freedom to enslaved Black people in Galveston, Texas, two months after the Confederacy had surrendered. It was about 2 1/2 years after the Emancipation Proclamation freed slaves in Southern states.

Biden on Thursday signed a bill creating Juneteenth National Independence Day. Since June 19 fell on a Saturday, the government observed the holiday Friday.  At least nine states have designated it in law as an official paid state holiday, all but one acting after Floyd, a Black man, was killed last year in Minneapolis.

In Galveston, the birthplace of the holiday, celebrations included the dedication of a 5,000-square-foot mural titled “Absolute Equality.” Opal Lee, 94, who was at Biden’s side when he signed the bill, returned to Fort Worth, Texas, to lead a 2.5-mile walk symbolizing the 2 1/2 years it took for slaves in Texas to find out they had been freed.

At dusk, the Empire State Building brightened the sky with red, black, and green lights to mark the day as it turned to night. Lights were used in a similar fashion at other New York state landmarks including the World Trade Center, Niagara Falls and the Albany International Airport Gateway.

New York civil rights activist the Rev. Al Sharpton offered a tough message during a speech at his National Action Network, saying Senate Republicans who voted unanimously to make Juneteenth a federal holiday should also support Democratic bills that change voting laws and make it easier to crack down on rogue police officers.

“The celebration of Juneteenth is not a party. … The way to deal with Juneteenth now is to deal with where race is in 2021,” Sharpton said.