1916/1/1: 111916 = 111:916 = each is 180 deg rotationally symmetric
1916/1/3: 191613 = 19:16:13 = arthimetic series of increment -3
1916/1/4: 010416 = 01:04:16 = geometric series of ratio 4
1916/1/6: 010616 = 010:616 = each is palindrome
1916/1/6: 1616 = cyclic permutation symmetric
1916/1/6: 191616 = 191:616 = each is palindrome
1916/1/6: 6116 = palindrome
1916/1/9: 010916 = 010:916 = each is 180 deg rotationally symmetric
1916/1/9: 9116 = 180 deg rotationally symmetric
1916/1/16: 011616 = 011:616 = integer ratio of 1 to 56
1916/1/22: 012216 = 012:216 = integer ratio of 1 to 18
1916/1/25: 012516 = 012:516 = integer ratio of 1 to 43
1916/1/28: 012816 = 012:816 = integer ratio of 1 to 68
1916/2/2: 221916 = 22:19:16 = arthimetic series of increment -3
1916/2/3: 3216 = 32:16 = integer ratio of 2 to 1
1916/2/6: 020616 = 020:616 = each is palindrome
1916/2/6: 191626 = 191:626 = each is palindrome
1916/2/9: 020916 = 02:09:16 = arthimetic series of increment 7
1916/2/26: 022616 = 022:616 = integer ratio of 1 to 28
1916/3/2: 1632 = 16:32 = integer ratio of 1 to 2
1916/3/2: 3216 = 32:16 = integer ratio of 2 to 1
1916/3/6: 030616 = 030:616 = each is palindrome
1916/3/6: 191636 = 191:636 = each is palindrome
1916/3/20: 032016 = 032:016 = integer ratio of 2 to 1
1916/3/20: 160320 = 160:320 = integer ratio of 1 to 2
1916/3/24: 032416 = 032:416 = integer ratio of 1 to 13
1916/4/1: 010416 = 01:04:16 = geometric series of ratio 4
1916/4/1: 160401 = 16:04:01 = geometric series of ratio 0.25
1916/4/6: 040616 = 040:616 = each is palindrome
1916/4/6: 191646 = 191:646 = each is palindrome
1916/4/6: 6416 = 64:16 = integer ratio of 4 to 1
1916/4/8: 040816 = 04:08:16 = geometric series of ratio 2
1916/4/8: 1648 = 16:48 = integer ratio of 1 to 3
1916/4/8: 4816 = 48:16 = integer ratio of 3 to 1
1916/4/10: 041016 = 04:10:16 = arthimetic series of increment 6
1916/5/6: 050616 = 050:616 = each is palindrome
1916/5/6: 191656 = 191:656 = each is palindrome
1916/5/18: 051816 = 051:816 = integer ratio of 1 to 16
1916/5/24: 052416 = 052:416 = integer ratio of 1 to 8
1916/6/1: 010616 = 010:616 = each is palindrome
1916/6/1: 16061 = palindrome
1916/6/1: 1616 = cyclic permutation symmetric
1916/6/1: 1661 = palindrome
1916/6/1: 6116 = palindrome
1916/6/2: 020616 = 020:616 = each is palindrome
1916/6/3: 030616 = 030:616 = each is palindrome
1916/6/4: 040616 = 040:616 = each is palindrome
1916/6/4: 1664 = 16:64 = integer ratio of 1 to 4
1916/6/4: 6416 = 64:16 = integer ratio of 4 to 1
1916/6/5: 050616 = 050:616 = each is palindrome
1916/6/6: 060616 = 060:616 = each is palindrome
1916/6/6: 191666 = 191:666 = each is palindrome
1916/6/7: 070616 = 070:616 = each is palindrome
1916/6/8: 080616 = 080:616 = each is palindrome
1916/6/9: 090616 = 090:616 = each is palindrome
1916/6/9: 9616 = 96:16 = integer ratio of 6 to 1
1916/6/10: 61016 = palindrome
1916/6/11: 061116 = 06:11:16 = arthimetic series of increment 5
1916/6/11: 61116 = palindrome
1916/6/12: 61216 = palindrome
1916/6/13: 61316 = palindrome
1916/6/14: 61416 = palindrome
1916/6/15: 61516 = palindrome
1916/6/16: 61616 = palindrome
1916/6/17: 61716 = palindrome
1916/6/18: 61816 = palindrome
1916/6/19: 61916 = palindrome
1916/6/19: 6191916 = palindrome
1916/7/6: 070616 = 070:616 = each is palindrome
1916/7/6: 191676 = 191:676 = each is palindrome
1916/7/22: 072216 = 072:216 = integer ratio of 1 to 3
1916/8/4: 040816 = 04:08:16 = geometric series of ratio 2
1916/8/4: 160804 = 16:08:04 = geometric series of ratio 0.5
1916/8/4: 4816 = 48:16 = integer ratio of 3 to 1
1916/8/6: 080616 = 080:616 = each is palindrome
1916/8/6: 191686 = 191:686 = each is palindrome
1916/8/12: 081216 = 08:12:16 = arthimetic series of increment 4
1916/9/1: 010916 = 010:916 = each is 180 deg rotationally symmetric
1916/9/1: 16091 = 180 deg rotationally symmetric
1916/9/1: 1691 = 180 deg rotationally symmetric
1916/9/1: 9116 = 180 deg rotationally symmetric
1916/9/2: 020916 = 02:09:16 = arthimetic series of increment 7
1916/9/2: 160902 = 16:09:02 = arthimetic series of increment -7
1916/9/6: 090616 = 090:616 = each is palindrome
1916/9/6: 1696 = 16:96 = integer ratio of 1 to 6
1916/9/6: 191696 = 191:696 = each is palindrome
1916/9/6: 9616 = 96:16 = integer ratio of 6 to 1
1916/9/10: 91016 = 180 deg rotationally symmetric
1916/9/11: 91116 = 180 deg rotationally symmetric
1916/9/12: 091216 = 09:12:16 = geometric series of ratio 1.33333333333333
1916/9/16: 9161916 = 180 deg rotationally symmetric
1916/10/1: 161001 = 161:001 = integer ratio of 161 to 1
1916/10/4: 041016 = 04:10:16 = arthimetic series of increment 6
1916/10/4: 161004 = 16:10:04 = arthimetic series of increment -6
1916/10/6: 61016 = palindrome
1916/10/7: 161007 = 161:007 = integer ratio of 23 to 1
1916/10/9: 91016 = 180 deg rotationally symmetric
1916/10/10: 161010 = 161:010 = each is palindrome
1916/10/13: 101316 = 10:13:16 = arthimetic series of increment 3
1916/10/16: 101616 = 101:616 = each is palindrome
1916/10/19: 101916 = 101:916 = each is 180 deg rotationally symmetric
1916/10/20: 161020 = 161:020 = each is palindrome
1916/10/23: 161023 = 161:023 = integer ratio of 7 to 1
1916/10/28: 102816 = 102:816 = integer ratio of 1 to 8
1916/10/30: 161030 = 161:030 = each is palindrome
1916/11/1: 161101 = 161:101 = each is palindrome
1916/11/6: 061116 = 06:11:16 = arthimetic series of increment 5
1916/11/6: 161106 = 16:11:06 = arthimetic series of increment -5
1916/11/6: 61116 = palindrome
1916/11/9: 91116 = 180 deg rotationally symmetric
1916/11/11: 161111 = 161:111 = each is palindrome
1916/11/16: 111616 = 111:616 = each is palindrome
1916/11/19: 111916 = 111:916 = each is 180 deg rotationally symmetric
1916/11/20: 112016 = 112:016 = integer ratio of 7 to 1
1916/11/21: 161121 = 161:121 = each is palindrome
1916/12/2: 161202 = 161:202 = each is palindrome
1916/12/6: 61216 = palindrome
1916/12/8: 081216 = 08:12:16 = arthimetic series of increment 4
1916/12/8: 161208 = 16:12:08 = arthimetic series of increment -4
1916/12/9: 091216 = 09:12:16 = geometric series of ratio 1.33333333333333
1916/12/9: 161209 = 16:12:09 = geometric series of ratio 0.75
1916/12/12: 161212 = 161:212 = each is palindrome
1916/12/14: 121416 = 12:14:16 = arthimetic series of increment 2
1916/12/16: 121616 = 121:616 = each is palindrome
1916/12/22: 161222 = 161:222 = each is palindrome