Tycho Brahe's improved instruments made precise observations of the skies ( 1576 – 1601 ), and from these Johannes Kepler ( 1621 ) deduced that planets orbited the sun in ellipses.

Among the musical compositions of Allegri were two volumes of concerti for five voices, published in 1618 and 1619 ; two volumes of motets for six voices, published in 1621 ; an edition of four-part sinfonia ; five masses, two settings of the Lamentations of Jeremiah, as well as numerous motets which were not published in his lifetime.

The play was entered into the Register of the Stationers Company on 6 October 1621, by Thomas Walkley, and was first published in quarto format by him in 1622:

Fludd's philosophy is presented in Utriusque Cosmi, Maioris scilicet et Minoris, metaphysica, physica, atque technica Historia ( The metaphysical, physical, and technical history of the two worlds, namely the greater and the lesser, published in Germany between 1617 and 1621 ); according to Frances Yates, his memory system ( which she describes in detail in The Art of Memory, pp. 321 – 341 ) may reflect the layout of Shakespeare's Globe Theatre ( The Art of Memory, Chapter XVI ).

In 1615 Hall published A Recollection of such treatises as have been published ( 1615, 1617, 1621 ); in 1625 appeared his Works ( reprinted 1627, 1628, 1634, 1662 ).

The work, published under the pseudonym Democritus Junior in 1621, was quite popular.

Petrus and Jacobus Chouet published the Greek text for the first time in 1621.

In addition to the Eratosthenes Batavus, he published ( 1621 ), and Tiphys Batavus ( 1624 ).

His first publication, the incomplete Cigarrales de Toledo ( licensed in 1621, but not published till 1624 ), is a miscellany, containing short tales, novels, verses and three plays.

A manuscript entitled De Formatione Ovi et Pulli, found among his lecture notes after his death, was published in 1621.

The earliest extant manual on Shaolin Kung Fu, the Exposition of the Original Shaolin Staff Method was written in around 1610 and published in 1621 from what its author Chéng Zōngyóu learned during a more than ten year stay at the monastery.

The History of Tom Thumb was published in 1621, and has the distinction of being the first fairy tale printed in English.

The earliest surviving text is a 40-page booklet printed in London for Thomas Langley in 1621 entitled The History of Tom Thumbe, the Little, for his small stature surnamed, King Arthur's Dwarfe: whose Life and adventures containe many strange and wonderfull accidents, published for the delight of merry Time-spenders.

Richard Johnson's 1621 narrative ends here but he promised his readers a sequel that has never been found, if published at all.

Close to twenty of his plays were published during his lifetime ; of these, more than half are comedies, with three significant tragedies, Lust's Dominion ( presumably identical to The Spanish Moor's Tragedy, written with Day, Marston, and William Haughton, 1600 ) The Witch of Edmonton ( with Ford and Rowley, 1621 ), and The Virgin Martyr ( with Massinger, 1620 ).

* The Witch of Edmonton ( performed 1621 ; published 1658 ).

Although other editions of the London Pharmacopoeia were issued in 1621, 1632, 1639 and 1677, it was not until the edition of 1721, published under the auspices of Sir Hans Sloane, that any important alterations were made.

To this didactic and descriptive category belong his best poems, Trost-Gedichte in Widerwãrtigkeit des Krieges ( written 1621, but not published until 1633 ); Zlatna, oder von der Ruhe des Gemüths ( 1622 ); Lob des Feldlebens ( 1623 ); Vielgut, oder vom wahren Glück ( 1629 ), and Vesuvius ( 1633 ).

Luís Figueira was another important figure of this time, who wrote the second Tupi grammar, published in 1621.

These works appeared in four large volumes published in 1604, 1613, 1614 and 1621.

He also published a metrical psalter ( The Whole Booke of Psalmes ) in 1621.

In 1621, Robert Burton published The Anatomy of Melancholy, which looked at the loss of important characters in one's life as leading to depression.

In 1621, Thomas Ravenscroft published an expanded edition of the Sternhold and Hopkins Psalter ; Ravenscroft's edition added many more psalm tunes, some of which were composed since the first publication by leading late Tudor and early Stuart English composers such as Thomas Morley, Thomas Tallis, John Dowland, and Thomas Tomkins.

1200, completely rebuilt in 1578 and expanded in 1621.

He received some votes in the 1605 conclaves which elected Pope Leo XI, Pope Paul V, and in 1621 when Pope Gregory XV was elected, but only in the second conclave of 1605 was he papabile.

His brother, Francis Lovelace ( 1621 – 1675 ), was the second governor of the New York colony appointed by the Duke of York, later King James II of England.

* Edward Seymour, 1st Earl of Hertford ( second creation of that title ) ( 22 May 1539 – 1621 ), married firstly in November 1560, Lady Catherine Grey, by whom he had two sons ; he married secondly in 1582, Frances Howard ; and thirdly in 1601, Frances Prannell.

The first war was concluded by the 1624 Peace of Vienna, the second by the 1626 Peace of Pressburg-both confirmed the 1621 Peace of Nikolsburg.

) This physic garden is the second oldest botanical garden in Britain, after the University of Oxford Botanic Garden, which was founded in 1621.

Francis Lovelace ( 1621 – 1675 ) was an English Royalist and the second Governor of New York colony.

* Francis Lovelace ( 1621 – 1675 ), second governor of New York Colony

The fact that the King's Men had a second theatre meant that they didn't lose all their playscripts and costumes, as the Admiral's / Palsgrave's Men would do in the Fortune Theatre fire of December 1621 ( a disaster that was, for that company, the beginning of the end ).

Greville obtained from James I a grant of Warwick Castle, and in 1621 he was raised to the Peerage of England as Baron Brooke, of Beauchamps Court in the County of Warwick, with remainder to his second cousin ( once removed ), and adopted son, Robert Greville.

Chidiock's second cousin and contemporary was Sir Benjamin Tichborne who lived at Tichborne Park and was created a Baronet by King James I in 1621.

His father William White died February 21, 1621 and in May his mother Susanna married Pilgrim Edward Winslow as his second wife.

Therefore there must be an unknown second child ( at this time-1651 ). They had arrived in Plymouth in 1621 on the Fortune.

* Edward Seymour, 1st Earl of Hertford ( second creation of that title ) ( 22 May 1539 – 1621 ), married firstly in November 1560, Lady Catherine Grey, by whom he had two sons ; he married secondly in 1582, Frances Howard ; and thirdly in 1601, Frances Prannell ( born Lady Frances Howard ), widow of Henry Prannell.

His second wife was Anne Brett ( died 1670 ), a cousin of Buckingham's mother, whom he married somewhat reluctantly in 1621 in order to ensure Buckingham's support.

Henry I Knight of Reading, Berkshire cast the second and fourth bells in 1621.

In Vermeer's painting The Astronomer ( 1668 ), the book lying on the table has been identified as a 1621 second edition of Metius's Institutiones Astronomicae Geographicae.

Her half-brothers were Richard Lovelace ( 1618 – 1657 ) an English poet in the seventeenth century and Francis Lovelace ( 1621 – 1675 ), who was the second governor of the New York colony appointed by the Duke of York, later King James II of England.

Edward Seymour, 1st Earl of Hertford, KG ( 22 May 1539 – 6 April 1621 ) was the eldest son of Edward Seymour, 1st Duke of Somerset, by his second wife Anne Stanhope.