Four hundred years ago, Henry Hudson set out on the high seas and landed at what is now New York City.

Quite the discovery.

Inspired by that spirit of exploration, NY-based Toobydoo has launched a modern line of kids’ clothing that celebrates four centuries of adventure. From Fort Amsterdam tees to heraldic crests to prints of early traders and Native Americans, Toobydoo throws in a little history lesson with every shirt.

Stock up on soft cotton/cashmere zip-neck sweaters in multi-color stripes and dresses made for play. Babies will love roomy, boot-cut Chelsea (as in Piers) jumpsuits with matching lightweight summer blankets perfect for a stroller expedition up the block.

After all, you never know whom you’re going to sea.

Available online at toobydoo.com. Enter code DCKIDS at checkout to get 30 percent off through April 20.

SHOP
Olive and Bette’s Splendid Kids Sample Sale
What: Every piece of infant, toddler, and tween clothing is just $25.
Why: Big savings for little people.
When: Tues., 11 a.m.-7 p.m.
Where: 252 Columbus Ave., b/t 71st & 72nd Sts. (212-579-2178).

BLOW
BubbleMania: Science, Art & Comedy
What: World-renowned bubbleologist Casey Carle makes bubbles burst into flames.
Why: Pop on over.
When: Thru Apr. 19. Sat., 2, 3 & 4 p.m.
Where: New York Hall of Science, 47-01 111th St., Queens (718-699-0005). Tickets first come, first served.

HEAR
Tom Chapin
What: The main man of children’s folk music sings Family Tree favorites.
Why: Be sure to tune in.
When: Sat., 11 a.m. & 1 p.m.
Where: Queens Theatre in the Park, Flushing Meadows, Corona Park, Queens. Tickets online at queenstheatre.org or 718-760-0064.