The first Arbor Day was April 10th, 1872, in Nebraska.
5 seconds sound clip from the It's Arbor Day, Charlie Brown movie soundboard.
You can hear this line at 00:04:36.680 in the DVD version of the movie.
Quote context
[...]
- Don't worry about it, Sally.
- I'm sure we can find some books about Arbor Day in the library.
- Oh, Linus, are you going to help me?
- Unlike most holidays that fall on a particular day...
- Oh, just a minute, let me take notes.
- Arbor Day is celebrated on different days in different states throughout the springtime months.
- Isn't springtime when a young man's fancy? How's your fancy, Linus?
- The first Arbor Day was April 10th, 1872, in Nebraska.
- The main idea of Arbor Day is that of conservation.
- Oh, Linus, you read so poetically.
- Linus, this gives me a wonderful idea.
[...]