How was the escalator important in 1891? i need a simple answer

The escalator was important because during the 1890’s the huge buildings with 20 floors was incredibly difficult for people to walk up on on a daily basis so it was important that they found a solution to that problem

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude

The adams apple, or laryngeal prominence. is a feature of the human neck, and is the lump or protrusion that is formed by the angle of the thyroid cartilage surrounding the larynx seen especially in males.