1Thru4 is a fun and addictive quiz game of over 300 topics from 5 different categories: American History, Geography, Sports & Entertainment, World History, and General. The goal is to correctly rank order four items in a game of 5 topics, one from each of the categories. Examples of the order required are first to last, most to least, and largest to smallest. You get 1 point for each item you put in correct order, for a possible total of 4 points per topic and 20 points per game. You use your finger to drag the items into correct order. You have 45 seconds to complete the ordering before your answers are submitted automatically. You can play against the computer at easy, medium, and hard levels of difficulty. You can also play against another person.