| ★ |  2022 Baltimore County History Day Award Ceremony | mdhumanities @mdhumanities | 71 | — | |
| 1 |  Maryland History Day 2022 Award Ceremony | mdhumanities @mdhumanities | 441 | — | 93 |
| 11 |  Maryland History Day Judge Training - Video 5: Introduction to Evaluating Entries | mdhumanities @mdhumanities | 254 | — | 87 |
| 18 |  Maryland History Day Judge Training - Video 6: Rules and Infractions | mdhumanities @mdhumanities | 220 | — | 87 |
| 13 |  Maryland History Day Judge Training - Video 7: Evaluating Historical Argument and the Theme | mdhumanities @mdhumanities | 212 | — | 87 |
| 14 |  Maryland History Day Judge Training - Video 8: Evaluating Wide Research & Primary Sources | mdhumanities @mdhumanities | 187 | — | 87 |
| 16 |  Maryland History Day Judge Training - Video 11: Comments and Commenting | mdhumanities @mdhumanities | 174 | — | 87 |
| 17 |  Maryland History Day Judge Training - Video 9: Evaluating Historical Context & Multiple Perspectives | mdhumanities @mdhumanities | 158 | — | 87 |
| 15 |  Maryland History Day Judge Training - Video 10: Evaluating Historical Context & Significance | mdhumanities @mdhumanities | 144 | — | 87 |
| 20 |  Maryland History Day Judge Training - Video 3: Categories and Divisions | mdhumanities @mdhumanities | 111 | — | 86 |
| 19 |  Maryland History Day Judge Training - Video 4: Annual Theme & Topics | mdhumanities @mdhumanities | 104 | — | 86 |
| 5 |  Maryland History Day 2025 Volunteer Intro | mdhumanities @mdhumanities | 39 | — | 89 |
| 6 |  Maryland History Day Student Office Hour - Working with the Theme | mdhumanities @mdhumanities | 21 | — | 88 |
| 2 |  Maryland History Day Student Office Hour - Getting Contest Ready | mdhumanities @mdhumanities | 17 | — | 90 |
| 7 |  Maryland History Day Student Office Hour - Finishing the Project | mdhumanities @mdhumanities | 16 | — | 88 |
| 3 |  Maryland History Day Student Office Hour - Heading to the Contest | mdhumanities @mdhumanities | 14 | — | 89 |
| 10 |  Maryland History Day Student Office Hour - Creating the Project | mdhumanities @mdhumanities | 13 | — | 87 |
| 4 |  Maryland History Day Student Office Hour - Finishing Touches | mdhumanities @mdhumanities | 12 | — | 89 |
| 12 |  Maryland History Day for English Learners | mdhumanities @mdhumanities | 12 | — | 87 |
| 8 |  Maryland History Day Student Office Hour - Starting Your Research | mdhumanities @mdhumanities | 10 | — | 87 |
| 9 |  Maryland History Day Student Office Hour - Digging Deeper into Research | mdhumanities @mdhumanities | 6 | — | 87 |