Appendicitis occurs when the appendix becomes blocked, often by stool, a foreign body, or cancer. Blockage may also occur from infection, since the appendix swells in response to any infection in the body.
A familial generation is a group of living beings constituting a single step in the line of descent from an ancestor. In developed nations the average familial generation length is in the high 20s and has even reached 30 years in some nations.
The Greatest Generation, also known as the G.I. Generation, is the generation that includes the veterans who fought in World War II. They were born from around 1900 through 1924, coming of age during the Great Depression. Journalist Tom Brokaw dubbed this the Greatest Generation in a book of the same name.