Charts and graphs showing the history of recommended vaccinations in the United States from 1945 to the present.

This site discusses demand and the law of demand, and shows how a demand schedule can be transferred into a demand curve. It also explains how a change in the price of a substitute can cause your original demand curve to shift.

This site discusses supply schedules and supply curves, along with an example of how a supply curve may shift.

Follow the schedule of George Washington on his inauguration day. For each event, a summary, pictures, or a video is included with explanations of that particular event. A transcript of his inauguration speech is provided.

A brief description of the Opera House as well as phone numbers to call for reservations, a photo of the exterior, and other general information.

This site shows both a supply and demand schedule, and constructs a graph using this schedule. It continues on to discuss equilibrium, and then shows a new equilibrium after there has been a change in supply.

This site shows both a supply and demand schedule, and constructs a graph using this schedule. It continues on to discuss equilibrium, and then shows a new equilibrium after there has been a change in supply.

This site features news, player bios, schedule, ticket information, and a page recounting the 1969 season in day-by-day reports.

Philadelphia Phillies - official site, with schedule, news, chat, and more.

Philadelphia Phillies - official site, with schedule, news, chat, and more.

Philadelphia Phillies - official site, with schedule, news, chat, and more.

Major League Baseball's official site for the San Diego Padres contains up-to-date news/stories, scores, audio/video content, player profiles, game schedule, history of the team, and much more!

Major League Baseball's official site for the San Diego Padres contains up-to-date news/stories, scores, audio/video content, player profiles, game schedule, history of the team, and much more!

Major League Baseball's official site for the San Diego Padres contains up-to-date news/stories, scores, audio/video content, player profiles, game schedule, history of the team, and much more!

This is the official site of the Boston Red Sox. This site features schedules, stats, and the latest breaking news.

This is the official site of the Boston Red Sox. This site features schedules, stats, and the latest breaking news.

This is the official site of the Boston Red Sox. This site features schedules, stats, and the latest breaking news.

This is the official site of the Boston Red Sox. This site features schedules, stats, and the latest breaking news.

Official Site of the Cleveland Indians featuring links, news, stats, schedules, rosters, and more.

Official Site of the Cleveland Indians featuring links, news, stats, schedules, rosters, and more.

USA TODAY, a leading national newspaper, provides extensive coverage of women's professional basketball. Content includes top stories, scores, standings, schedules, rosters, and much more.

Contains Nelson's pictorial guide-books, a fascinating look at the journey on the Central Pacific Railroad from Utah to California, including time schedules and descriptions of scenery.

Contains Nelson's pictorial guide-books, a fascinating look at the journey on the Central Pacific Railroad from Utah to California, including time schedules and descriptions of scenery.

Contains Nelson's pictorial guide-books, a fascinating look at the journey on the Central Pacific Railroad from Utah to California, including time schedules and descriptions of scenery.