Black paper which is gained from selling goods and things like that then white paper which is usually handed by the government
Around the time of Julius Caesar the form of roman government effected the change from the form of Republic to that of Empire. This, however, only happenned after his death by assassination and was succeeded by his grandnephew Octavius, who in fact was the first Roman Emperor.
The 5th Amendment states that "No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger; nor shall any person be subject for the same offence to be twice put in jeopardy of life or limb; nor shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation"
This is important as it means that, amongst other things, the Government can't make you provide testimony against yourself.
For instance, in Rochin v. California, the Supreme Court held that cops couldn't beat you until you vomited up the drugs you swallowed to hide from the cops. They ruled that the police officers violated the suspect's 5th amendment rights.
What it did is it doubled its size