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+Note that timestamps may not reflect the actual creation date.  Sometimes it's the date of a copy, or a file in Saildart.  In other cases there is no reliable timestamp, and it's the backup date.
+
+Year without month and day is backup date.  Full date is timestamp.
+
+| File | Version | Timestamp | Source | Binary
+| --- | --- | --- | --- | ---
+| [TX-0 MIDAS](http://www.textfiles.com/bitsavers/bits/MIT/tx-0/midas/) |
+| [PDP-1 MIDAS](http://walden-family.com/impcode/bbn-1966-pdp1d-midas-manual.pdf) | 
+| (DECtape) MIDAS 16K | ? | ? | | yes
+| .; @ MIDAS | ? | 1972 | | yes
+| RFC 254 | 39 | 1971-10
+| MUDDLE; TS MIDAS | 73 | 1973 | | yes
+| AIM-147A | 75 | 1971 |
+| BACKUP; TS OOMIDA | 76 | 1972 | | yes
+| BACKUP; TS OOMMID | 76 | 1972 | | yes
+| BACKUP; TS OMIDAS | 77 | 1972 | | yes
+| BACKUP; TS OLMIDA |  77 | 1972 |  | yes
+| BACKUP; TS OMMIDA | 77 | 1972 | | yes
+| INFO; MIDAS ARCHIV | 94 | 1972-07-10
+| INFO; MIDAS ARCHIV | 96 | 1972-08-10
+| INFO; MIDAS ARCHIV | 98 | 1972-08-13
+| INFO; MIDAS ARCHIV | 103 | 1973-02-11
+| INFO; MIDAS ARCHIV | 108 | 1973-03-06
+| SYSENG; MIDAS 108 | 108 | 1973 | yes |
+| INFO; MIDAS ARCHIV | 113 | 1973-03-27
+| INFO; MIDAS ARCHIV | 119 | 1973-04-08
+| INFO; MIDAS ARCHIV | 121 | 1973-04-20
+| INFO; MIDAS ARCHIV | 123 | 1973-06-07
+| INFO; MIDAS ARCHIV | 135 | 1974-04-01
+| SYSBIN; MIDAS 135BIN | 135 | 1974-03-26 | | yes
+| INFO; MIDAS ARCHIV | 142 | 1974-05-01
+| INFO; MIDAS ARCHIV | 185 | 1974-06-16
+| INFO; MIDAS ARCHIV | 194 | 1975-01-30
+| INFO; MIDAS ARCHIV | 199 | 1975-04-10 | yes?
+| INFO; MIDAS ARCHIV | 217 | 1976-03-17
+| INFO; MIDAS ARCHIV | 234 | 1976-03-23
+| INFO; MIDAS ARCHIV | 245 | 1976-04-02
+| INFO; MIDAS ARCHIV | 252 | 1976-04-11
+| INFO; MIDAS ARCHIV | 254 | 1976-05-16
+| INFO; MIDAS ARCHIV | 255 | 1976-05-16
+| INFO; MIDAS ARCHIV | 283 | 1976-08-22
+| BACKUP; MIDAS BIN289 | 289 | 1976-09-13 | | yes
+| INFO; MIDAS ARCHIV | 290 | 1976-09-01
+| INFO; MIDAS ARCHIV | 299 | 1976-09-12
+| MIDAS; MIDAS 308 | 308 | 1976-10-19 | yes
+| MIDAS.323[CSP,SYS] | 323 | Saildart | yes
+| MIDAS.328[CSP,SYS] | 328 | Saildart | yes
+| MIDAS.329[CSP,SYS] | 329 | Saildart | yes
+| MIDAS; MIDAS 332 | 332 | 1977-07-09 | yes
+| MIDAS.333[CSP,SYS] | 329 | Saildart | yes
+| MIDAS; MIDAS 343 | 343 | 1977-07-19 | yes
+| MIDAS.346[CSP,SYS] | 346 | Saildart | yes
+| MIDAS.351[CSP,SYS] | 351 | Saildart | yes
+| MIDAS.352[CSP,SYS] | 352 | Saildart | yes
+| MIDAS.353[CSP,SYS] | 353 | Saildart | yes
+| INFO; MIDAS ARCHIV | 354 | 1977-10-30
+| INFO; MIDAS ARCHIV | 355 | 1977-11-16
+| MIDAS.359[CSP,SYS] | 359 | Saildart | yes
+| INFO; MIDAS ARCHIV | 390 | 1978-05-01
+| INFO; MIDAS ARCHIV | 393 | 1978-06-10
+| MIDAS.394[CSP,SYS] | 394 | Saildart | yes
+| MIDAS.400[CSP,SYS] | 400 | Saildart | yes
+| INFO; MIDAS ARCHIV | 402 | 1978-07-27
+| MIDAS.409[CSP,SYS] | 409 | Saildart | yes
+| INFO; MIDAS ARCHIV | 410 | 1978-11-15
+| MIDAS; MIDAS 412 | 412 | 1978-12-05 | yes
+| maclsp804/midas.416 | 416 | 1979-08-13 | yes
+| MIDAS; MIDAS 421 | 421 | 1980-03-05 | yes
+| MIDAS; MIDAS 433 | 433 | 1983-04-05 | yes
+| MIDAS; MIDAS 455 | 455 | 1984-01-31 | yes
+| MIDAS; MIDAS 456 | 456 | 1984-06-27 | yes
+| MIDAS; MIDAS 458 | 458 | 1984-10-03 | yes
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