The Ottoman Empire lasted from 1299 to 1923. It was centered in Turkey and controlled the eastern and southern lands around the Mediterranean Sea. The empire was founded by Osman I around 1299, and was most powerful from around 1400 to 1600, when it controlled trade and politics in southeastern Europe, southwest Asia, and northern Africa. Suleiman the Magnificent was one of the most powerful rulers.
About Finance menu. Leasehold Improvements. A leasehold improvement is an improvement made to a leased building by a department that has the right to use this leasehold improvement over the term of the lease. This improvement will revert to the lessor at the expiration of the lease.
A building improvement is something that you do for your building, and a leasehold improvement is something that you do to your building for a specific tenant's benefit. The two types of improvements get treated very differently from the Internal Revenue Service's perspective.