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Along with October, May is one of the most densely packed months of the year. It's before the summer humidity and the last whole month of the school year. The weather is warming in t...
The solstice on the 20th marks the onset of summer (Northern Hemisphere) or winter (Southern Hemisphere). Many people, particularly in Europe, North America and Asia, will be embarking o...
Spring has sprung in the north, and the first hints of Autumn are on the horizon in the south. April is the month spring (or fall) gets underway, and it is filled with religious celebrations, including the Mu...
The rubber eraser was invented on this day in 1770 by Joseph Priestly and later on developed by Edward Nairne into a commercial product.
At first it was made by vegetable gum, but in 1839 Charles Goodyear discovered vulcanization, thus allowing more durable rubber to replace the vegetable based gum.
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