NEW YORK — From flashy firework displays for massive crowds to small-town parades, Americans celebrated the United States’ 241st birthday in both joyous and serious ways.

Tuesday’s events even went international, as U.S. senators traveled to Afghanistan and spent the holidays with the troops and an Independence Day exhibition took Major League Baseball to London.

Along with the fireworks, July Fourth also comes with some light-hearted traditions, like competitive eating contests. But the holiday is taking place in a nation that has grappled with divides this past year. And in an era of concerns about security, the Independence Day celebrations are mixed with precautions.

Some highlights from around the world:

SPARKLE AND FLASH

Thousands upon thousands of fireworks turned the night sky over New York City into a festival of color during the annual Macy’s fireworks show. Crowds lined up along the East River to watch.

The 60,000 shells launched from five barges went off at an average of 2,400 shells per minute and exploded into happy faces and flowers in colors including purple, orange and yellow. The crowd cheered and applauded wildly, with lots of oohs and cries of “Look at that!”

Security to get into the area was tight. Police set up checkpoints to examine bags, and onlookers had to leave chairs and blankets behind in favor of standing. Some officers were heavily armed, with bulletproof vests and helmets.

Before the fireworks went off, artists including Jennifer Lopez, Sheryl Crow, and Brad Paisley performed.

A FIRST FOR THE PRESIDENT

For President Donald Trump’s first Independence Day in office, he and first lady Melania Trump hosted a picnic for military families at the White House.

Rain threatened the event on the South Lawn but cleared up as Trump stepped out to address the crowd from a balcony. The Republican president pledged his “unwavering support” and told the crowd that he will “always have your back.”

Before the picnic, Trump kicked off his holiday at his golf club in Virginia. He arrived at the club in Sterling just before 10 a.m. and spent nearly four hours there before returning to the White House. Aides did not answer questions about whether he was golfing.

CALIFORNIA CELEBRATES WITH CLASSIC CARS

Decked out in red, white and blue, Californians waved flags and sang patriotic songs at Independence Day parades across the state.

Hundreds of people lined the streets under bright sunshine Tuesday for seaside Santa Monica’s celebration, which featured bands and classic cars.

California’s love affair with the automobile was also front and center at South Pasadena’s parade, which had the theme “Freedom on the Road. Celebrating Route 66.”

When the sun sets, the parties will continue with fireworks displays. Among the largest in the Los Angeles area will be the annual fanfare at the Rose Bowl in Pasadena.

To the north, officials are hoping clouds will clear in time for the big display over San Francisco Bay.

OBSERVING JULY FOURTH OVERSEAS

A bit of American sports culture was displayed in London’s Hyde Park, where several former major leaguers competed in a home run derby. Major League Baseball aims to build interest in the sport in Britain and Europe, despite the region’s longstanding preference for soccer.

The managing director of Major League Baseball for Europe, Charlie Hill, said the Independence Day exhibition is an attempt to “lay down roots” in Britain. He says it’s possible that some official games will be played in London during the 2019 season.

Meanwhile, Denmark hosted the Rebild Festival, considered one of the largest Fourth of July celebrations outside the United States. Danish Foreign Minister Anders Samuelsen — who recently tweeted that Trump “should tighten up, focus on the struggle for freedom and show respect for the presidency” in response to Trump’s own Twitter habit — told festival-goers that “when you are friends, you have the right to criticize.”

Samuelsen added that it’s “impossible” to live without the United States.

SENATORS CELEBRATE THE FOURTH WITH TROOPS ABROAD

Rhode Island U.S. Sen. Sheldon Whitehouse says it was emotional and inspiring to spend July Fourth with troops in Afghanistan.

Sen. John McCain, an Arizona Republican, led a group of senators to Pakistan and Afghanistan for the holiday weekend. They visited a military base in South Waziristan and met with Pakistani leaders in Islamabad before traveling to Kabul, Afghanistan.

Whitehouse, a Rhode Island Democrat, said in a phone interview from Bagram airfield on Tuesday it was emotional because service members in Afghanistan are constantly in harm’s way and constantly making the nation proud.

Massachusetts Democratic Sen. Elizabeth Warren, South Carolina Republican Sen. Lindsey Graham and Georgia Republican Sen. David Perdue are on the trip. They met with Afghanistan President Ashraf Ghani.

GULP! HOW MANY HOT DOGS CAN A PERSON EAT?

Record-setting hot dog eater Joey “Jaws” Chestnut held onto his title at the hot dog eating contest at Nathan’s Famous in New York, breaking the record he set last year. The San Jose, California, man chowed down 72 hot dogs in 10 minutes, besting last year’s mark of 70.

Meanwhile, Miki Sudo notched a fourth straight win in the women’s division on the Coney Island boardwalk. The Las Vegas woman ate 41 hot dogs and buns in 10 minutes.

TRADITIONAL ATLANTA ROAD RACE

Tens of thousands of amateur runners in Atlanta have celebrated the Fourth of July by trailing after an elite band of professionals in the city’s annual 10K race.

Organizers of the AJC Peachtree Road Race say more than 55,000 runners took part Tuesday morning in hot, humid weather under clear skies.

DAYLONG PARTY IN PHILLY

In Philadelphia, where the Founding Fathers approved the Declaration of Independence on July 4, 1776, there was a daylong national birthday party.

At a celebration of freedom ceremony at Independence Hall on Tuesday morning, members of Boyz II Men read excerpts from the document, and a parade was held through the city’s historic area. Descendants of some of the signers of the Declaration were to take part in the annual ceremonial tapping of the Liberty Bell later Tuesday.

Hundreds of thousands of people attended a party on the Benjamin Franklin Parkway with hours of free music capped by a concert by Mary J. Blige. The festivities were to end with the annual fireworks display.

HOME FOR THE HOLIDAY

Residents of the southern Utah ski resort town of Brian Head were planning a fireworks-free celebration, having returned home just this past Friday after a wildfire forced evacuations in the town two weeks earlier.

“None of us even knew if we were going to be open for the Fourth of July,” Brian Head Resort spokesman Mark Wilder said.

The alpine town is near several national monuments and parks in Utah’s red rock country. Brian Head is normally filled with vendors selling crafts and food on the holiday, one of the biggest celebrated at the resort and the start of the area’s festival season, Wilder said.

But he said the town has suspended its fireworks show this year because the area is still too dry and ripe for fires.

“I’m sure people are disappointed with that, but better safe than sorry,” Wilder said.

Meanwhile, at California’s Squaw Valley ski resort, skiers were poised to enjoy a rare July Fourth on the slopes. It’s only the fourth time the resort has ever been open in July.

PARADE ACCIDENTS

At the nation’s oldest continuous Fourth of July celebration, a woman was hit by a parade float. WJAR-TV reports it happened at the parade in Bristol, Rhode Island. Bystanders said the woman was pinned under the float and onlookers helped lift it off her. The woman was hospitalized.

The Bristol parade was started in 1785. It’s billed as the oldest continuous celebration of independence in the country and attracts about 100,000 people to the seaside town in a typical year.

In Fremont, Ohio, an antique tow truck crashed into two tractors during an Independence Day parade, injuring multiple people. Police say the tow truck’s driver lost control of the vehicle and crashed into two farm tractors near the beginning of the parade.