Artworks are grouped into periods or styles based on similarities that they share, for example a similar time of creation (for example, Medieval), a similar use of technique (for example, pointillism) or similar subject of depiction (for example, portraits).
<span>Diego rivera </span>painted Emiliano Zapata. hope this helps
1920s had the biggest start. It was the beginning of the great depression and radios used to expensive then became less expensive around this time too
