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.
The first mechanical clock was invented during the early Renaissance. Improvements were made by Galileo who invented the pendulum in 1581. This invention allowed clocks to be made that were much more accurate.any of the great scientific discoveries made during the Renaissance were in the area of astronomy. Great scientists such as Copernicus, Galileo, and Kepler all made major contributions. This was such a big subject that we devoted an entire page to it. Learn more about it at our page on Renaissance Astronomy.