1) Thalassemia was first described by Dr Thomas Cooley in 1925, when he observed the disorder in patients of mediteranean ancestry, and called Cooley's anemia until doctors at the University of Rochester coined the name thalassemia, which means "sea in the blood" which is a reference to the fact that thalassemia is prevalent in the Mediteranean Sea area. Thalassemia was historically found in warmer areas of the world and became prevalent in those areas because they coincide with the areas where malaria is also prevalent, and thalassemia provides some protection against malaria, resulting in more thal carriers surviving malaria epidemics than non-thals, thereby inflating the percentage of those populations carrying the thal genes. In Thailand, it is estimated that at least 30% of the population carries some variation of a thalassemia gene.
2) There are three main types of thalassemia. Minor, intermedia and major. Beta thalassemia is a genetic blood disorder that is caused by defective hemoglobin genes. There are two genes involved, one from each parent. If one gene is defective, the condition in known as thal minor. If both are defective, it results in intermedia or the more severe major, depending on the severity of the gene mutation or deletion. Thalassemia can be detected by blood tests, but major is usually noticed within the first year, as the child will not develop at a normal rate and may become sickly. In most states in the US, thal will be discovered with routine blood tests after birth. Intermedia is usually noticed during the first few years of life, and minor will be noticed in any complete blood count by the small mis-shapen red blood cells that are found in all three types of thal.
I can't answer #3 and can only give some comments on #'s 4 & 5. I'll leave the rest to the thals here to answer.
I would like to comment that what we would like to see is a much better educated public when it comes to thal. Thalassemia major was once a universally fatal disorder, with patients surviving no later than their early 20's, but with modern treatments, thalassemia has been reclassified as a chronic (not fatal) disorder, and thals can live long fruitful lives. People need to be educated to this fact and change their thinking in terms of survival of thals and provide them equal opportunity in life.
The need for blood donations is always high because of thal, and the need for money put into research is great. It is very likely that better treatment and even cures are within reach if adequate funding is given to thal research. The public also needs to be made more aware about thalassemia worldwide, as it is a huge problem in many countries, such as India, Pakistan and Thailand, and is a growing problem elsewhere, inculding the US, as more Asians emigrate.