Engelbert Developmental Timeline By PatrickEngelbert Jul 20, 2000 Birth Date Period: Jul 21, 2000 to Jul 21, 2002 Sensorimotor Stage Nov 20, 2000 Turn from stomach to side Dec 20, 2000 Height and weight is doubled Dec 20, 2000 turn from stomach to back Jan 20, 2001 turns from back to stomach Mar 20, 2001 Sits Apr 20, 2001 crawls Apr 20, 2001 Can hold items in two fingers Aug 20, 2001 stands Sep 20, 2001 walks Jul 20, 2002 Infancy is over and Childhood begins Period: Jul 20, 2002 to Jul 20, 2007 Preoperational Stage Jul 20, 2003 A Form of Self-Esteem Begins Developing Jul 20, 2006 The beginning of self value (based on physical appearance and performance in school) Period: Jul 20, 2007 to Jul 20, 2012 Concrete-Operational Stage Period: Jul 20, 2010 to Jul 20, 2011 Adolescence Growth Spurt Period: Jul 20, 2011 to Jul 20, 2014 Early Adolescence Jul 20, 2012 Self-Esteem reaches low point Period: Jul 20, 2012 to Jul 20, 2016 Puberty Jul 21, 2012 Beginning of Formal Operation Stage Jul 20, 2015 Peer Pressure is at it's Peek Period: Jul 20, 2015 to Jul 20, 2018 Middle Adolescence Jul 20, 2017 Peer Pressure Begins to Decline Period: Jul 20, 2018 to Jul 20, 2021 Late Adolescence Period: Jul 20, 2020 to Jul 20, 2040 Early Adulthood Jul 20, 2040 Midlife Crisis Begins Period: Jul 20, 2040 to Jul 20, 2065 Middle Adulthood Period: Jul 20, 2040 to Jul 20, 2050 Middlescence Jul 20, 2050 Menopause (Women) Jul 20, 2065 Late Adulthood Begins Jul 20, 2065 Retirement? Jul 20, 2100 Death
