Butter by Henry Wadsworth Longfellow

The poem doesn’t clarify this point, and Longfellow didn’t leave a clear note about it. "Butter" might be a nickname for the person the poem addresses, or it could simply be a playful term Longfellow used for a light, casual verse — similar to calling something "smooth" or easy. This remains one of the poem's little mysteries.

It's genuinely funny. Longfellow is mocking the type of American who claims their country's air is better than anything from the old world. The comparison between ale and air is a deliberate absurdity meant to provoke a laugh.

A friend or acquaintance getting ready to board a ship bound for England. We don’t know their name or much else about them—they're mainly a device for Longfellow to share his wry take on national pride.

A "sup" is an old term for a small sip or mouthful. Longfellow intentionally uses it to convey that New England air feels thin and unsatisfying when compared to a hearty drink of ale.

He's playfully poking fun at American exceptionalism—the belief that everything about the new world is inherently superior to the old. He isn't claiming that America is bad; he simply won't act as if national pride by itself is enough to sustain us.

That word "our" carries a lot of subtle weight. It implies that the speaker — and by extension Longfellow — still senses a shared cultural heritage with England. For many educated Americans of the 19th century, England didn't feel like a foreign land but rather a cultural homeland they had never fully abandoned.

No, not at all. It's just a minor, occasional piece — more like a quick verse a poet scribbles for a friend than a significant literary work. Longfellow is much better known for pieces like The Song of Hiawatha and Paul Revere's Ride. This one is more of a curiosity.