The dynamisation of art in the 20th century and its impact on typographie. by Michael Mahla. As early as the first decades of this century, velocity, machines and films were well-known phenomena. They had a decisive impact on the artists of those days. The introduction of new technologies transcended imagination, changed communication, the artistic point of view, and human consciousness itself.
Howard, Kimberly. Keep your tax records for a minimum of 3 years. After that, it depends on your situation as to the length of time. If you wrote off a bad debt, better keep them for 7 years. If you have a small business, 7 years may serve you best. Be sure to keep not only a copy of the return, but all the supporting documents.
Records for tax deductions taken. Length of time to keep, and why: Seven years. 1  The IRS has three years from your filing date to audit your return if it suspects good-faith errors.2  The three-year deadline also applies if you discover a mistake in your return and decide to file an amended return to claim a refund.ecords for tax deductions taken. Length of time to keep, and why: Seven years. 1  The IRS has three years from your filing date to audit your return if it suspects good-faith errors.