Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Arkansas 1 | Thaddeus H. Caraway | Democratic | 1912.0 | Re-elected | Thaddeus H. Caraway (D) Unopposed |
| Arkansas 2 | William A. Oldfield | Democratic | 1908.0 | Re-elected | William A. Oldfield (D) Unopposed |
| Arkansas 3 | John N. Tillman | Democratic | 1914.0 | Re-elected | John N. Tillman (D) Unopposed |
| Arkansas 4 | Otis Wingo | Democratic | 1912.0 | Re-elected | Otis Wingo (D) Unopposed |
| Arkansas 5 | Henderson M. Jacoway | Democratic | 1910.0 | Re-elected | Henderson M. Jacoway (D) Unopposed |
| Arkansas 6 | Samuel M. Taylor | Democratic | 1913.0 | Re-elected | Samuel M. Taylor (D) Unopposed |
Question:
When was incumbent John N. Tillman first elected?
Answer:
1914.0