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 | Vacator | Reason for change | Successor | Date successor seated |
| --- | --- | --- | --- | --- |
| Virginia 2nd | Vacant | Virginia re-admitted into the Union | James H. Platt, Jr. (R) | January 26, 1870 |
| Virginia 3rd | Vacant | Virginia re-admitted into the Union | Charles H. Porter (R) | January 26, 1870 |
| Virginia 4th | Vacant | Virginia re-admitted into the Union | George Booker (C) | January 26, 1870 |
| Virginia 5th | Vacant | Virginia re-admitted into the Union | Robert Ridgway (C) | January 27, 1870 |
| Virginia 6th | Vacant | Virginia re-admitted into the Union | William Milnes, Jr. (C) | January 27, 1870 |
| Virginia 8th | Vacant | Virginia re-admitted into the Union | James K. Gibson (C) | January 28, 1870 |
| Virginia 1st | Vacant | Virginia re-admitted into the Union | Richard S. Ayer (R) | January 31, 1870 |
| Virginia 7th | Vacant | Virginia re-admitted into the Union | Lewis McKenzie (C) | January 31, 1870 |
| Mississippi 1st | Vacant | Mississippi re-admitted into the Union | George E. Harris (R) | February 23, 1870 |
| Mississippi 2nd | Vacant | Mississippi re-admitted into the Union | Joseph L. Morphis (R) | February 23, 1870 |
| Mississippi 3rd | Vacant | Mississippi re-admitted into the Union | Henry W. Barry (R) | February 23, 1870 |
| Mississippi 5th | Vacant | Mississippi re-admitted into the Union | Legrand W. Perce (R) | February 23, 1870 |
| Texas 1st | Vacant | Texas re-admitted into the Union | George W. Whitmore (R) | March 30, 1870 |
| Texas 2nd | Vacant | Texas re-admitted into the Union | John C. Conner (D) | March 31, 1870 |
| Texas 3rd | Vacant | Texas re-admitted into the Union | William T. Clark (R) | March 31, 1870 |
| Texas 4th | Vacant | Texas re-admitted into the Union | Edward Degener (R) | March 31, 1870 |
| Georgia 6th | Vacant | Failure to elect | William P. Price (D) | December 22, 1870 |
| Pennsylvania 3rd | John Moffet (D) | Lost contested election April 9, 1869 | Leonard Myers (R) | April 9, 1869 |
| Wisconsin 2nd | Benjamin F. Hopkins (R) | Died January 1, 1870 | David Atwood (R) | February 23, 1870 |
| Ohio 10th | Truman H. Hoag (D) | Died February 5, 1870 | Erasmus D. Peck (R) | April 23, 1870 |
| New York 11th | George W. Greene (D) | Lost contested election February 17, 1870 | Charles Van Wyck (R) | February 17, 1870 |
| Kentucky 3rd | Jacob Golladay (D) | Resigned February 28, 1870 | Joseph H. Lewis (D) | May 10, 1870 |
| Pennsylvania 5th | John R. Reading (D) | Lost contested election April 13, 1870 | Caleb N. Taylor (R) | April 13, 1870 |
| North Carolina 2nd | David Heaton (R) | Died June 25, 1870 | Joseph Dixon (R) | December 5, 1870 |
| Iowa 2nd | William Smyth (R) | Died September 30, 1870 | William P. Wolf (R) | December 6, 1870 |
| Virginia 5th | Robert Ridgway (C) | Died October 16, 1870 | Richard T. W. Duke (C) | November 8, 1870 |
Question:
When was successor David Atwood (R) seated?
Answer:
February 23, 1870