The short version.
flowchart TD
A[May 1775: Second Continental Congress meets] --> B[Congress takes on national-government responsibilities]
B --> C[June 1775: Continental Army established]
C --> D[June 1775: Continental currency established]
D --> E[July 1775: Post office for the United Colonies created]
E --> F[August 1775: Royal proclamation declares rebellion]
F --> G[Late 1775: American Prohibitory Act treats the colonies as foreign]
G --> H[May 1776: King George III hires German mercenaries]
H --> I[March 1776: Privateering Resolution passed]
I --> J[April 6 1776: American ports opened to other nations]
J --> K[May 10 1776: Resolution for the Formation of Local Governments]
K --> L[January to May 1776: Common Sense and colonial support for independence spread]
L --> M[May 15 1776: Virginia instructs its delegates to propose independence]
M --> N[June 7 1776: Richard Henry Lee presents the Lee Resolution]
N --> O[June 11 1776: Congress postpones consideration]
O --> P[Congress recesses for three weeks]
P --> Q[Committee of Five appointed to draft a statement]
Q --> R[Thomas Jefferson drafts the Declaration]
R --> S[Franklin and Adams review and suggest corrections]
S --> T[Jefferson prepares a fair copy and reports to the committee]
T --> U[July 1 1776: Congress reconvenes]
U --> V[July 2 1776: Lee Resolution adopted by 12 colonies]
V --> W[Congress begins to consider the Declaration]
W --> X[July 3 to July 4: revisions continue]
X --> Y[July 4 1776: Declaration officially adopted]