Level History of blackboard
| Level | Date |
|---|---|
| 51 | 2017-09-13 07:28:51 |
| 50 | 2017-09-07 17:14:51 |
| 49 | 2017-09-06 08:13:09 |
| 48 | 2017-09-05 12:23:01 |
| 47 | 2017-09-04 18:03:21 |
| 46 | 2017-09-04 06:09:37 |
| 45 | 2017-09-03 08:43:12 |
| 44 | 2017-09-02 15:17:14 |
| 43 | 2017-09-02 12:21:27 |
| 42 | 2017-08-31 14:19:07 |
| 41 | 2017-08-31 12:06:18 |
| 40 | 2017-08-31 11:17:44 |
| 39 | 2017-08-31 09:33:18 |
| 38 | 2017-08-31 08:24:32 |
| 37 | 2017-08-31 06:06:37 |
| 36 | 2017-08-31 05:08:47 |
| 35 | 2017-08-31 04:08:50 |
| 34 | 2017-08-28 14:28:34 |
| 33 | 2017-08-21 10:02:57 |
| 32 | 2017-08-21 08:30:02 |
| 31 | 2017-08-21 06:27:04 |
| 30 | 2017-08-20 18:48:06 |
| 29 | 2017-08-20 18:03:00 |
| 28 | 2017-08-20 17:29:57 |
| 27 | 2017-08-20 12:48:52 |
| 26 | 2017-08-20 12:13:27 |
| 25 | 2017-08-20 11:36:48 |
| 24 | 2017-08-20 11:08:11 |
| 23 | 2017-08-20 10:48:16 |
| 22 | 2017-08-20 10:26:37 |
| 21 | 2017-08-20 10:00:32 |
| 20 | 2017-08-20 09:23:11 |
| 19 | 2017-08-20 08:59:33 |
| 18 | 2017-08-20 08:40:28 |
| 17 | 2017-08-20 08:24:49 |
| 16 | 2017-08-20 07:52:45 |
| 15 | 2017-08-20 07:36:24 |
| 14 | 2017-08-20 07:23:36 |
| 13 | 2017-08-20 07:12:58 |
| 12 | 2017-08-20 06:59:19 |
| 11 | 2017-08-20 06:53:18 |
| 10 | 2017-08-20 06:50:21 |
| 9 | 2017-08-20 06:45:05 |
| 8 | 2017-08-20 06:32:50 |
| 7 | 2017-08-20 06:22:29 |
| 6 | 2017-08-20 06:05:11 |
| 5 | 2017-08-20 06:01:26 |
| 4 | 2017-08-20 05:56:06 |
| 3 | 2017-08-20 05:51:05 |
| 2 | 2017-08-20 05:49:51 |