Information about 402

400 (four hundred) is the natural number following three hundred [and] ninety-nine and preceding four hundred [and] one.

Mathematical properties

400 is the square of 20.

A circle is divided into 400 grads, which is equal to 360 degrees and 2π radians.
..... Click the link for more information.

Upper Paleolithic
• 10th millennium BC | 9th millennium BC | 8th millennium BC
• 7th millennium BC | 6th millennium BC | 5th millennium BC

..... Click the link for more information.

As a means of recording the passage of time, the 4th century (per the Julian/Gregorian calendar and Anno Domini era) was that century which lasted from 301 to 400.

Overview

..... Click the link for more information.

The 5th century is the period from 401 to 500 in accordance with the Julian calendar in Anno Domini, the year of our Lord.

Overview

The Western Roman Empire is ruled by a succession of weak emperors, and true power falls increasingly into the hands of powerful generals.
..... Click the link for more information.

The 6th century is the period from 501 to 600 in accordance with the Julian calendar in the Christian Era. This century is widely considered to mark the end of Classical Antiquity and the beginning of the Dark Ages.
..... Click the link for more information.

list of decades which have articles with more information about them.

During the twentieth century, it became popular to look at that century's decades as historical entities in themselves.
..... Click the link for more information.

Centuries: 3rd century - 4th century - 5th century

340s 350s 360s - 370s - 380s 390s 400s
370 371 372 373 374
375 376 377 378 379

- -
-

Events and Trends

..... Click the link for more information.

Centuries: 3rd century - 4th century - 5th century

350s 360s 370s - 380s - 390s 400s 410s
380 381 382 383 384
385 386 387 388 389

- -
-

Events and Trends

..... Click the link for more information.

Centuries: 3rd century - 4th century - 5th century

360s 370s 380s - 390s - 400s 410s 420s
390 391 392 393 394
395 396 397 398 399

- -
-

Events and Trends

• Gildonic revolt in Africa Province (397–398)

Births

..... Click the link for more information.

Centuries: 4th century - 5th century - 6th century

370s 380s 390s - 400s - 410s 420s 430s
400 401 402 403 404
405 406 407 408 409

- -
-

Events and Trends

..... Click the link for more information.

Centuries: 4th century - 5th century - 6th century

380s 390s 400s - 410s - 420s 430s 440s
410 411 412 413 414
415 416 417 418 419

- -
-

Events and Trends

• Sack of Rome by the Visigoths under Alaric.

..... Click the link for more information.

Centuries: 4th century - 5th century - 6th century

390s 400s 410s - 420s - 430s 440s 450s
420 421 422 423 424
425 426 427 428 429

- -
-

Events and Trends

• Saint Augustine of Hippo publishes The City of God.

..... Click the link for more information.

Centuries: 4th century - 5th century - 6th century

400s 410s 420s - 430s - 440s 450s 460s
430 431 432 433 434
435 436 437 438 439

- -
-

Events and Trends

• Buddhagosha writes the Visuddhimagga in Sri Lanka (approximate date).

..... Click the link for more information.

This page indexes the individual years pages.

Twenty-first century

2100 - 2099 - 2098 - 2097 - 2096 - 2095 - 2094 - 2093 - 2092 - 2091

2090 - 2089 - 2088 - 2087 - 2086 - 2085 - 2084 - 2083 - 2082 - 2081

..... Click the link for more information.

4th century · 5th century
360s 370s 380s 390s 400s 410s 420s
396 397 398 399 400 401 402
..... Click the link for more information.

4th century · 5th century
370s 380s 390s 400s 410s 420s 430s
397 398 399 400 401 402 403
..... Click the link for more information.

<noinclude>

This article is about the year 401. For other uses, see 401 (disambiguation)

4th century · 5th century · 6th century
370s 380s 390s 400s
..... Click the link for more information.

5th century · 6th century
370s 380s 390s 400s 410s 420s 430s
400 401 402 403 404 405 406
..... Click the link for more information.

<noinclude>
..... Click the link for more information.

5th century - 6th century
370s  380s  390s  - 400s -  410s  420s  430s
402 403 404 - 405 - 406 407 408
..... Click the link for more information.

Axum – Eon, King of Axum

Asia

• China
• Eastern Jin Dynasty - Emperor An, Emperor of Eastern Jin (397-419)
• Northern Wei Dynasty

..... Click the link for more information.

Gregorian calendar is the most widely used calendar in the world. A modification of the Julian calendar, it was first proposed by the Calabrian doctor Aloysius Lilius, and was decreed by Pope Gregory XIII, for whom it was named, on 24 February 1582 via the papal bull
..... Click the link for more information.

Ab Urbe condita (literally, "from the city, having been founded") is a monumental history of Rome, from its legendary founding (ab Urbe condita, dated to 753 BC by Varro and most modern scholars). The book was written by Titus Livius (around 59 BC–AD 17).
..... Click the link for more information.

Armenian calendar uses the Armenian numerals. It begins in AD 552 as the start of the Armenian era.

Dates are marked by the letters ԹՎ
..... Click the link for more information.

Buddhist calendar is used on mainland Southeast Asia in the countries of Cambodia, Laos, Thailand, Myanmar (formerly Burma) and Sri Lanka in several related forms. It is a lunisolar calendar having months that are alternately 29 and 30 days, with an intercalated day and a 30-day
..... Click the link for more information.

Chinese calendar is a lunisolar calendar, incorporating elements of a lunar calendar with those of a solar calendar. In China today, the Gregorian calendar is used for most day to day activities, but the Chinese calendar is still used for marking traditional Chinese holidays such
..... Click the link for more information.

The Chinese sexagenary cycle (Chinese: 干支; Pinyin: gānzhī) is a cyclic numeral system of 60 combinations of the two basic cycles, the ten Heavenly Stems (天干;
..... Click the link for more information.

The Chinese sexagenary cycle (Chinese: 干支; Pinyin: gānzhī) is a cyclic numeral system of 60 combinations of the two basic cycles, the ten Heavenly Stems (天干;
..... Click the link for more information.

Coptic calendar, also called the Alexandrian calendar, is used by the Coptic Orthodox Church. This calendar is based on the ancient Egyptian calendar. To avoid the calendar creep of the latter, a reform of the ancient Egyptian calendar was introduced at the time of Ptolemy
..... Click the link for more information.

Ethiopian calendar (Amharic: የኢትዮጵያ ዘመን አቆጣጠር ye'Ītyōṗṗyā zemen āḳoṭaṭer), also called the
..... Click the link for more information.