shipbuilding
The construction of ships.
In the past, shipbuilding was a major undertaking, crucial for navigation safety, fishing, and trade. In traditional almanacs, choosing an auspicious day for 'shipbreaking' is intended to pray for a sturdy hull, smooth voyages, and to avoid water-related disasters or accidents. These taboos and auspicious timings reflect the high-risk nature of water-based work and people's deep desire for safety. Modern shipbuilding is highly technological, but the associated date-selection concepts are still recorded in traditional folk customs.