Place the following events in order. The Song dynasty was established The Mongols established the Yuan dynasty. The Tang dynasty ruled China. The Han dynasty ruled China.

## Step 1<br />The Han dynasty ruled China from 202 BC to 220 AD. This is the earliest period among the given events.<br /><br />## Step 2<br />The Tang dynasty ruled China from 618 to 907 AD. This period is later than the Han dynasty but earlier than the Song dynasty.<br /><br />## Step 3<br />The Song dynasty was established in 960 AD and lasted until 1279 AD. This period is later than the Tang dynasty but earlier than the Yuan dynasty.<br /><br />## Step 4<br />The Mongols established the Yuan dynasty in 1271 AD, which lasted until 1368 AD. This period is the latest among the given events.