Checking your tax refund status online. Step 1 - Wait. Wait at least three days after e-filing your tax return before checking a refund status. When you e-file your tax return to the IRS, it needs approximately three days to update your information on the website.
In 1456 Gutenberg invented the printing press. This created a widespread of books. Once people owned books reading glasses began to be seen in the hands of the common people. These glasses were made with a variety of materials including wood, lead, copper, bone, leather, and even horn. In 1623 the Spanish invented the first graded lenses.
Johannes Gutenberg was a German blacksmith known for inventing the mechanical movable type printing press. His printing press has been widely considered the most important invention of the modern era because it profoundly impacted the transmission of knowledge.