Context: Prior to 1917, Turkey used the lunar Islamic calendar with the Hegira era for general purposes and the Julian calendar for fiscal purposes. The start of the fiscal year was eventually fixed at 1 March and the year number was roughly equivalent to the Hegira year (see Rumi calendar). As the solar year is longer than the lunar year this originally entailed the use of "escape years" every so often when the number of the fiscal year would jump. From 1 March 1917 the fiscal year became Gregorian, rather than Julian. On 1 January 1926 the use of the Gregorian calendar was extended to include use for general purposes and the number of the year became the same as in other countries.

Question: What calendar did Turkey use before 1917 for general purposes?
Answer: lunar Islamic

Question: What calendar did Turkey utilize for fiscal purposes?
Answer: Julian

Question: Where did Turkey start the fiscal year?
Answer: 1 March

Question: When did Turkey begin to use the Gregorian calendar for fiscal means?
Answer: 1 March 1917

Question: When did Turkey start using the Gregorian calendar for all purposes?
Answer: 1 January 1926

Question: Who use the lunar Islamic calendar until the nineteenth century?
Answer: Unanswerable

Question: Who use the Hegira era is a fiscal calendar?
Answer: Unanswerable

Question: What was used to set the year number?
Answer: Unanswerable

Question: What was needed because the lunar year is longer than the solar year?
Answer: Unanswerable

Question: What did Turkey start using for all purposes on March 1, 1917?
Answer: Unanswerable