Random triples
| Subject | Object |
|---|---|
| gptkb:first_practical_marine_chronometer | global exploration |
| gptkb:Bartholomeu_Dias | advancements in navigation techniques |
| gptkb:Fernando_de_Magallanes | advanced maritime navigation techniques. |
| gptkb:Sulina_Lighthouse | Danube River traffic |
| gptkb:Vasco_da_Gama | advancements in maritime navigation |
| gptkb:Harrison's_H4_chronometer | improved maritime navigation techniques |