Pregnancy may cause changes in hormones that affect the thyroid, and thyroid problems can affect a growing baby. For some women with Graves' disease, symptoms worsen in the first trimester, and then improve for the rest of the pregnancy. Symptoms often worsen again after delivery.
When was the School Bus invented? raman December 10, 2011 Comments Off on When was the School Bus invented? In 1827, George Shillibeer introduced the first school bus for Quaker school at Abney Park in Stoke Newington in the North-East of United Kingdom. It was horse-drawn and designed to carry 25 children. The rear-engine diesel-powered school bus was introduced in 1959 by Gillig Bros. Collin Bus introduced the first small school bus in 1967 and later in 1973 by the Wayne Busette. Miscellaneous Post navigation
In all, about 35,000 school buses transport 1.5 million school children daily. Texas approved a school bus seat belt law in 2007, which mandated that school buses bought on or after Sept. 1, 2010, be equipped with three-point seat belts, the kind that strap across the waist and shoulder. But the law wouldnât take effect unless the Legislature provided money to reimburse districts.