Definition

1. Noun:
   • Reign title / Era name: A name chosen by a monarch (especially in historical East Asian contexts like Vietnam, China, Japan, Korea) to designate and count the years of their rule. It is a formal period title for a sovereign's reign.

Usage Examples

• Noun:
  • Vua Lý Thái Tổ đặt niên hiệu là Thuận Thiên. (Emperor Lý Thái Tổ established the reign title as Thuận Thiên.)
  • "Quang Trung" vừa là tên hiệu vừa là niên hiệu của vua Nguyễn Huệ. ("Quang Trung" is both the regnal name and the era name of Emperor Nguyễn Huệ.)
  • Các sử gia nghiên cứu sự kiện dựa trên niên hiệu của các triều đại. (Historians study events based on the reign titles of dynasties.)

Advanced Usage

• The practice of declaring a was a significant act of sovereignty, symbolizing the start of a new political order. A single monarch could have multiple era names during their reign, often changed after auspicious events or to mark a new beginning.
• In historical dating, an event is often recorded as, for example, "Thuận Thiên năm thứ nhất" (the first year of the Thuận Thiên era).

Variants and Related Words

• Niên đại (n): Chronological date or period; a broader term for a date in history.
• Triều đại (n): Dynasty; a succession of rulers from the same family or line.
• Quốc hiệu (n): National name; the official name of a country during a specific period.

Synonyms

• Era name
• Reign title
• Period designation

Related Concepts

• Gregorian Calendar: The solar calendar system now in common international use (e.g., 2024). Historical are often cross-referenced with this calendar.
• Regnal Year: A similar Western concept of numbering the years of a monarch's reign (e.g., "in the 5th year of Queen Elizabeth II's reign"), though without a specific name like a .

1. Name of a reign's years