Form of state. 1  1918â1938: A democratic republic. 2  1938â1939: After annexation of Sudetenland by Germany in 1938, the region gradually turned into a state with loosened connections among the Czech, Slovak, and Ruthenian parts.n 1938, Adolf Hitler demanded control of the Sudetenland. Britain and France ceded control in the Appeasement at the Munich Conference, ignoring the military alliance Czechoslovakia had with France. First, in October 1938, Nazi Germany occupied and annexed the Sudetenland border region.
So thatâs how long we advise in our charts. Check with your state about state income tax, though. Some make you keep tax records a really long time: In Ohio, itâs 10 years. The IRS can also ask for records up to six years after a filing if they suspect someone failed to report 25% or more of his gross income.
The IRS says you should keep tax returns and the paperwork supporting them for at least three years after you file the return â the amount of time the IRS has to audit you. So thatâs how long we advise in our charts. Check with your state about state income tax, though. Some make you keep tax records a really long time: In Ohio, itâs 10 years. The IRS can also ask for records up to six years after a filing if they suspect someone failed to report 25% or more of their gross income. And the agency never closes the door on an audit if it suspects fraud.