Down syndrome was discover by?

can u give me some Bibliography of down syndrome.....
(like who discover down S...)

its discover by jerome lerdor....or something....
and its near the meaning of william syndrome..
its was discover in 1959.

Down Syndrome can be found on any web. I have a niece that is now 25 with downs. Her mental state is at the age around 5. However, like any young girl of five years old, she still holds her baby doll and wants to get married and have a baby like she see her other married adult cousins doing.

What is Down syndrome?

Down syndrome is a lifelong condition in which a person is born with distinct physical features, such as a flat face and short neck, and some degree of cognitive disability (mental retardation). Although Down syndrome is permanent, most people who have it are able to live healthy, productive lives. Given the proper care and help they need, children with Down syndrome can flourish and grow into healthy and happy adults.

What causes Down syndrome?

Down syndrome is caused by abnormal cell division very early in fetal development. This abnormal division produces an extra or irregular chromosome in some or all of the body's cells. Chromosomes carry genetic material (DNA), or genes, to every cell in the body. The extra or irregular chromosome causes the body and brain to develop differently than in people who have normal chromosomes.

What are the symptoms?

Many children with Down syndrome have noticeable features, such as a flat face with small ears and mouth. Most young children have weak muscles (hypotonia), which generally improves by late childhood.

Below-average intelligence and physical problems often result in developmental disabilities. A child with Down syndrome may also be born with heart, intestinal, or ear and respiratory defects. These health conditions often lead to other problems, such as respiratory infections or difficulty hearing.

How is Down syndrome diagnosed?

During your pregnancy, you may choose to have tests to screen for Down syndrome and other abnormalities in your fetus. Screening does not diagnose Down syndrome but rather provides information about the likelihood that your fetus will have the condition. Screening tests include:

Down syndrome was first officially noted by John Langdon Haydon Down in 1866, and the syndrome was named for him. Unfortunately, the name "Down" has a negative connotation and people often don't realize that it is the name of the doctor, and has nothing to do with the condition itself.

If you google his name, you will learn more about how it was identified.