| Date | Description |
|---|
| 2022-08-18 |
insert address 105 Carmel Road
Wheeling, WV 26003 |
| 2022-08-18 |
update primary_contact null => 105 Carmel Road
Wheeling, WV 26003 |
| 2021-02-11 |
delete index_pages_linkeddomain hmhco.com |
| 2021-02-11 |
insert index_pages_linkeddomain polyhedronphysics.com |
| 2021-02-11 |
insert index_pages_linkeddomain youtube.com |
| 2020-03-05 |
delete source_ip 216.250.121.40 |
| 2020-03-05 |
insert source_ip 74.208.236.207 |
| 2016-08-25 |
delete source_ip 74.208.29.190 |
| 2016-08-25 |
insert source_ip 216.250.121.40 |
| 2014-08-31 |
delete alias Polyhedron and MarTek Ltd. |
| 2014-08-31 |
delete industry_tag education technology |
| 2014-08-31 |
insert index_pages_linkeddomain hmhco.com |
| 2014-08-31 |
update founded_year 2004 => null |
| 2014-06-13 |
insert alias Polyhedron and MarTek Ltd. |
| 2014-06-13 |
insert industry_tag education technology |
| 2014-06-13 |
update founded_year null => 2004 |