Joke Collection Website - Talk about mood - Why did Strauss say the Danube is blue?

Why did Strauss say the Danube is blue?

This is related to the creative inspiration of little Strauss at that time.

When johann strauss read the poem of the poet carl baker:

"You are sentimental,

You are young, beautiful, gentle,

Like glittering gold in a mine,

The truth wakes up there,

By the Danube,

Next to the beautiful blue Danube.

Strauss was deeply moved and full of thoughts, and wrote this famous song.