How to make a simple and beautiful greeting card for Arbor Day?

The greeting cards for Arbor Day are as follows:

1. Take a piece of paper and fold it in half, and draw the following pattern on the folded paper with a pencil, as follows

2. Cut it with scissors and fold it aside along the link

3. Open the paper and fold it back with the center line as the axis

4. The prototype of the Christmas tree.

Arbor Day was initiated by Nebraska, USA. On April 1th, 1872, Morton put forward the proposal of setting up Arbor Day at a meeting held by the Garden Association of Nebraska, USA. The state adopted Morton's suggestion, and designated April 22nd as its Arbor Day every year. In 1932, it issued the world's first Arbor Day stamp, showing two children planting trees. Later, American states and even countries all over the world responded.