Famous Book

"Horn Book Fanfare Best book of the year"

"Mei li"

This is the story of a little Chinese girl, Mei Li, who wanted nothing more than going to the New Year Fair in the city. But a little girl always had to stay home, so Mei Li could not have permission to go to the Fair with her brother, San Yu.

http://www.alibris.com/search/books/author/Thomas%20Handforth

Amazing scientific discovery

Discovered Pluto

Pluto, the celestial snowball, the smallest and out reaches planet in the solar system, had been discovered in 1930s. The scientists have doubt that Pluto is not a real planet. They hypothesised that it's a moon that some how escape from neptune.Discovered Pluto became one of the biggest discovery in 20 century.

http://vesuvius.jsc.nasa.gov/er/seh/pluto.html

Famous piece of art work

"Gift of the Art Institute of Omaha"

Stone City, Iowa was painted by Grant Wood, the famous philosopher-artist during 1930 decade. It reflected change in rural community,by the industries.

http://www.joslyn.org/permcol/20thcen/pages/wood.html

Technological improvement

invented phase-contrast microscope

Phase-contrast microscope was invented by Frits (Frederik) Zernike. Unlike other microscopes, it can show the stuctures of the cells and tissues, without staining.