In
2003
,
Reid
Hoffman
started
____________________
.
In
2004
,
Mark
Zuckerberg
created
____________________
.
In
2005
,
Aaron
Swartz
started
____________________
.
Jack
Dorsey
releases
____________________
in
2006
.
In
2010
,
Kevin
Systrom
started
____________________
.
In
2011
,
Aaron
Spiegel
started
____________________
.
In
2020
,
Alexis
Barreyat
released
____________________
.
