Basic analysis of the original content

• Genre: Informational calendar article (Vietnamese lunar calendar and related holidays). Target audience for the new article: English-speaking readers interested in lunar calendars, Vietnamese cultural holidays, and the Year of the Ox.
• Purpose and main message: Provide a practical 2021 calendar guide linking Gregorian and lunar (âm lịch) dates, highlight the Year of the Ox characteristics, list important public (solar) and lunar holidays, and note historical dates and observances.
• Structure and key points from the original:
  • Short cultural note about the Year of the Ox (Tân Sửu) and personality traits associated with Ox zodiac.
  • Lists of solar (Gregorian) public holidays and lunar (âm lịch) holidays in 2021.
  • Historical events and notable dates.
• Word count of original: ~680 words. Target length for the English article: approximately 612–748 words (±10%).

SEO analysis

• Primary keyword in original (Vietnamese): “lịch vạn niên 2021” / “lịch 2021” — suggested English equivalent primary keyword: “2021 lunar calendar” (good search volume) or “2021 Vietnamese lunar calendar”.
• Search intent for English readers: Informational — users seeking calendar dates, holiday lists, and cultural context about the Year of the Ox.
• Secondary and LSI keywords to use naturally: “Year of the Ox 2021”, “Vietnamese lunar holidays 2021”, “Tet 2021 (Lunar New Year)”, “lunar calendar dates 2021”, “Vietnam public holidays 2021”, “Vietnamese festivals 2021”.
• E-E-A-T and Helpful Content opportunities: cite reputable cultural sources (e.g., Vietnam government holiday announcements, cultural sites, UNESCO for festivals) if explicitly used; present clear, accurate dates and descriptions to be genuinely helpful.

2021 Lunar Calendar: Year of the Ox — Key Dates, Holidays, and Cultural Notes

The 2021 lunar calendar (Year of the Ox) offers a practical guide to Vietnamese lunar and solar holidays, cultural notes about Tân Sửu, and a concise list of historical observances for reference. This article focuses on the primary search term “2021 lunar calendar” and provides clear, user-friendly information for English-speaking readers interested in Vietnamese holidays and lunar dates.

The Year of the Ox (Tân Sửu) — Cultural Note

In Vietnamese zodiac tradition, the Ox symbolizes diligence, patience, and steady progress. People born in the Year of the Ox are often described as methodical, dependable, and persistent. The Ox is associated with spring and agriculture, reflecting values of hard work and endurance. The Year of the Ox (Tân Sửu) was considered a time of gradual but steady advancement.

Major Gregorian (Solar) Holidays in 2021

• 1 Jan — New Year’s Day
• 14 Feb — Valentine’s Day
• 27 Feb — Vietnamese Doctors’ Day
• 8 Mar — International Women’s Day
• 26 Mar — Founding of the Ho Chi Minh Communist Youth Union
• 1 Apr — April Fools’ Day
• 30 Apr — Reunification Day (Fall of Saigon)
• 1 May — International Workers’ Day
• 7 May — Dien Bien Phu Victory Day
• 13 May — Mother’s Day (observed)
• 19 May — Ho Chi Minh’s birthday (observed)
• 1 Jun — International Children’s Day
• 17 Jun — Father’s Day (observed)
• 21 Jun — Vietnam Journalists’ Day
• 28 Jun — Vietnamese Family Day
• 11 Jul — World Population Day
• 27 Jul — War Invalids and Martyrs’ Day
• 28 Jul — Vietnamese Trade Union Day
• 19 Aug — August Revolution anniversary
• 2 Sep — National Day (Independence Day)
• 10 Sep — National Front (Mặt trận Tổ quốc) founding day
• 1 Oct — International Day of Older Persons
• 10 Oct — Liberation of Hanoi
• 13 Oct — Vietnamese Entrepreneurs’ Day
• 20 Oct — Vietnamese Women’s Day
• 31 Oct — Halloween (observed)
• 9 Nov — Law Day (Vietnam)
• 20 Nov — Teachers’ Day
• 23 Nov — Vietnamese Red Cross founding day
• 1 Dec — World AIDS Day
• 19 Dec — National Resistance Day
• 24 Dec — Christmas Eve (observed)
• 22 Dec — Vietnam People’s Army founding day

Key Lunar (âm lịch) Holidays in 2021

• Lunar 1/1 — Tết Nguyên Đán (Lunar New Year/Tet)
• Lunar 15/1 — Tết Nguyên Tiêu (Full Moon Festival/First Full Moon)
• Lunar 3/3 — Hàn Thực (Cold Food Festival)
• Lunar 10/3 — Giỗ Tổ Hùng Vương (Hung Kings’ Commemoration)
• Lunar 15/4 — Vesak (Buddha’s Birthday, observed in lunar calendar)
• Lunar 5/5 — Tết Đoan Ngọ (Mid-year Festival)
• Lunar 15/7 — Vu Lan (Ullambana / Ghost Festival)
• Lunar 15/8 — Mid-Autumn Festival (Tết Trung Thu)
• Lunar 9/9 — Tết Trùng Cửu (Double Ninth Festival)
• Lunar 10/10 — Tết Thường Tân (lesser-known traditional observance)
• Lunar 15/10 — Hạ Nguyên (Third Full Moon festival)
• Lunar 23/12 — Táo Quân (Kitchen Gods’ Day; send-off of the Kitchen Gods)

Notable Historical Dates Mentioned

The original list includes historic events and anniversary dates observed or commemorated in Vietnam. A selection of widely recognized historical dates:

• 6 Jan 1946 — First National Election (Vietnam)
• 3 Feb 1930 — Founding of the Communist Party of Vietnam
• 30 Apr 1975 — Liberation of South Vietnam; National Reunification
• 7 May 1954 — Dien Bien Phu Victory
• 19 May 1890 — Birth of Ho Chi Minh
• 2 Sep 1945 — Proclamation of Independence (National Day)
• 27 Jul — War Invalids and Martyrs’ Day (annual observance)

How to Use This Guide

• For planning travel or cultural activities in Vietnam, use the lunar dates to determine Tet and other festival periods, and check official public holiday announcements for exact national leave schedules.
• For genealogical, cultural, or religious observance, use lunar dates (âm lịch) tied to traditional ceremonies and commemorations.
• Combine lunar and solar dates: Tet and many traditional festivals follow the lunar calendar; public service closures and modern observances follow the Gregorian calendar.

Internal links

• See also: Vietnamese Tet traditions, How the lunar calendar works, Major Vietnamese festivals 2021.

Conclusion and Call to Action

This 2021 lunar calendar overview highlights the Year of the Ox symbolism and lists key solar and lunar holidays for Vietnam in 2021. If you found this useful, please share your experiences celebrating Tet or other Vietnamese festivals in the comments — and explore more detailed guides on Vietnamese holidays and lunar calendar calculations.

References

• Government announcements and public holiday schedules (Vietnamese Government Gazette).
• Cultural resources on traditional Vietnamese festivals (e.g., Vietnam National Administration of Tourism).
• Works on the East Asian lunar calendar and zodiac symbolism (academic and cultural publications).