The Legal Status of Slavery, from the Revolution to the Civil War: Under the Kansas-Nebraska Act, how far north could slavery have extended had it been implemented in Nebraska territory? Up to the northern border of the United States, the 49th parallel.
Bed with pillow (right) and bolster (left) A bolster pillow. A bolster is a long narrow pillow or cushion filled with cotton, down or fibre. Bolsters are usually firm for back or arm support or for decorative application. They are not a standard size or shape and commonly have a zipper or hook-and-loop enclosure. A foam insert is sometimes used for additional support.
What is a Bottom Bracket (BB)? The bottom bracket connects the crankset to the frame and incorporates bearings which allow the cranks to freely spin. It features either a spindle or capacity to incorporate a spindle to which the crank arms, chainrings and pedals are attached. The bearings are either threaded or pressed into the bottom bracket shell part of the bicycle frame.