Keyword initiated declarations

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+# Keyword initiated declarations
+
+- Created: 2016-04-03
+
+## Summary
+[Summary]: #summary
+
+We shoud go for keyword based declarations.
+
+## Motivation
+[Motivation]: #motivation
+
+Inspired by Ruby, Swift and Rust a keyword initiated declaration is easier to recognize and read.
+
+C and C++ syntax to declare a function is quite complicated to teach. It also limits the usabilty to situations where the compiler expects them.
+
+## Detailed design
+[Detailed design]: #detailed-design
+
+All declarations should start with a keyword. These declarations are the only way to introduce a new concept to the compiler.
+
+The declaring keywords generally only work at the beginning of a statement. They might have a different meaning in other positions.
+
+Examples of declaring keywords:
+
+- `fn`, `fun` or `func` - a function
+- `type` - a type
+- `let` - a constant
+- `var` - a variable
+- `module` or `namespace` - a named global scope
+
+Each keyword is followed by the name of the declaration and is continued by a declaration specific stuff. Which is part of another proposal.
+
+## Drawbacks
+[Drawbacks]: #drawbacks
+
+It might be a bit more to type. But it should be well worth the effort, to get a constistent and readable language.
+
+## Alternatives
+[Alternatives]: #alternatives
+
+The C and C++ system of declarations. Where functions start with the return type and variables with the type.
+
+## Unresolved questions
+[Unresolved questions]: #unresolved-questions
+
+### Which declaration types are needed and which require their own keyword?
+
+This question should be prosponed for now. It should be discussed in other RFCs.
+
+### What keywords should be used for each declaration?
+
+This question should be discussed in the respective RFCs.