My best definition of Dance is that it is a multi-faceted presentation of choreographed movement in a national, regional or individualistic style which can be serious or fun, often accompanied by music, but sometimes by self-generated or external percussion, even by the spoken word and sometime by silence. Any combination of the above can create an art form capable of transcending linguistic and cultural differences. Here are a few outstanding "differences" courtesy of YouTube, to whom my thanks and especially to all the generous "uploaders".
Thumbnails best watched on Full Screen.
Slow to load!
2012
PRODIJIG
Got To Dance Winners
2008
THE GREAT CHINESE CIRCUS
Swan Lake?!?
2013
JORGE BARANI
Fun at the Studio
2014
VALMAR & JUZIINHA
Forro de Domingo Festival, Stuttgart, Germany
2008
GOLDEN POWER
Sandor Vlah and Gyula Tahacs
Slow Motion Hand Balancing
2006
SADIE
Belly Dance
c1936
MR PASTRY
aka Richard Hearn
2013
DUO FLAME
From the Ukraine
2015
NIC GARCEISS
A modern twist to the
Sand Dance
1933
WILSON KEPPEL & BETTY
The Sand Dance
c2006
STOMP
Brooms
1905 - 1937
EARL "Snake Hips" TUCKER
1981
JO JO STARBUCK & KEN SHELLEY
World Professional Skating
1998
JOHN LINDO & DEBORAH SZEKELY
Jack & Jill - West Coast Swing
2016
MAHOMET.SEYMOUCE TEAM
What room does fear have?
1970 FRED ASTAIRE
A lesson in body movement at 3:34
Singing in the rain
1976
MORECAMBE & WISE
Singing in the Rain?
2008
GAORSACH
Rapper Sword Dance
1952
GENE KELLY
Singing in the Rain
1990
TORVILLE & DEAN
Oscar Tango
1943
STORMY WEATHER
Cab Calloway & orchestra with the Nicholas Brothers
"The greatest dance number ever filmed."     
Fred Astaire
2012
Spanish 5 Ball team @ London
2014
Dance To Your own Music - Toccata and Fugue in D minor by J.S Bach
2008
World Figure Skating Championships
Sinead and John Kerr
2013
Optical Illusion Dance
2012
World Formation Latin
DUET perm
Russia
2015
FIK SHUN
World of Dance
2010
Sara Baras
FlamenJAZZco
2016
RhythmaticTapCo
COME TOGETHER
Choreography Nick Young