America’s 250th birthday is this Saturday, and Queens is marking the semiquincentennial with events running from today through the end of July: a tall ship parade on the East River, LED bike rides through Flushing Meadows, a free family concert in Fresh Meadows, and a paid rooftop party in the Rockaways, among others. QNS reporter Shane O’Brien rounded up the full calendar on June 29.

Tomorrow, July 3, from 1 to 3 p.m., 25 Class B tall ships will sail down the East River from Long Island Sound toward New York Harbor. Watch from Astoria Park, Gantry Plaza State Park, or Hunters Point South Park. The ships join a larger parade on July 4.

For Ridgewood readers, Queens Public Library is running a month-long “Summer at the Library America 250 History Series” across its branches, with dozens of events throughout July, according to QNS. The Ridgewood branch is hosting a teen exhibition on the evolution of New York City on July 7. The Elmhurst branch is running an American flag exhibition for kids ages 6 to 11 today, July 2.