diff --git a/Cargo.lock b/Cargo.lock
index 4fa3118607581..c8cf667a72019 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -454,6 +454,7 @@ dependencies = [
  "substrate-runtime-consensus 0.1.0",
  "substrate-runtime-io 0.1.0",
  "substrate-runtime-primitives 0.1.0",
+ "substrate-runtime-session 0.1.0",
  "substrate-runtime-staking 0.1.0",
  "substrate-runtime-support 0.1.0",
  "substrate-runtime-system 0.1.0",
diff --git a/demo/executor/Cargo.toml b/demo/executor/Cargo.toml
index c154a7c16501d..96b547af13f9b 100644
--- a/demo/executor/Cargo.toml
+++ b/demo/executor/Cargo.toml
@@ -20,6 +20,7 @@ demo-runtime = { path = "../runtime" }
 [dev-dependencies]
 substrate-keyring = { path = "../../substrate/keyring" }
 substrate-runtime-primitives = { path = "../../substrate/runtime/primitives" }
+substrate-runtime-session = { path = "../../substrate/runtime/session" }
 substrate-runtime-staking = { path = "../../substrate/runtime/staking" }
 substrate-runtime-system = { path = "../../substrate/runtime/system" }
 substrate-runtime-consensus = { path = "../../substrate/runtime/consensus" }
diff --git a/demo/executor/src/lib.rs b/demo/executor/src/lib.rs
index 699c3b1377f5a..cef697589e702 100644
--- a/demo/executor/src/lib.rs
+++ b/demo/executor/src/lib.rs
@@ -30,6 +30,7 @@ extern crate triehash;
 #[cfg(test)] extern crate substrate_keyring as keyring;
 #[cfg(test)] extern crate substrate_runtime_primitives as runtime_primitives;
 #[cfg(test)] extern crate substrate_runtime_support as runtime_support;
+#[cfg(test)] extern crate substrate_runtime_session as session;
 #[cfg(test)] extern crate substrate_runtime_staking as staking;
 #[cfg(test)] extern crate substrate_runtime_system as system;
 #[cfg(test)] extern crate substrate_runtime_consensus as consensus;
@@ -51,9 +52,10 @@ mod tests {
 	use demo_primitives::{Hash, BlockNumber, AccountId};
 	use runtime_primitives::traits::Header as HeaderT;
 	use runtime_primitives::{ApplyOutcome, ApplyError, ApplyResult, MaybeUnsigned};
-	use {staking, system, consensus};
+	use {staking, session, system, consensus};
+	use system::{EventRecord, Phase};
 	use demo_runtime::{Header, Block, UncheckedExtrinsic, Extrinsic, Call, Concrete, Staking,
-		BuildStorage, GenesisConfig, SessionConfig, StakingConfig, BareExtrinsic};
+		BuildStorage, GenesisConfig, SessionConfig, StakingConfig, BareExtrinsic, System, Event};
 	use ed25519::{Public, Pair};
 
 	const BLOATY_CODE: &[u8] = include_bytes!("../../runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm");
@@ -255,7 +257,7 @@ mod tests {
 			// Blake
 			// hex!("3437bf4b182ab17bb322af5c67e55f6be487a77084ad2b4e27ddac7242e4ad21").into(),
 			// Keccak
-			hex!("4956f00670e45ecb3c29be839fe6f981cb908ff0786536062096c628d577a142").into(),
+			hex!("56c9a542e48ccf4e0821de301ea4384e87425604278b12a9db31c6d4e89ca51e").into(),
 			vec![BareExtrinsic {
 				signed: alice(),
 				index: 0,
@@ -271,7 +273,7 @@ mod tests {
 			// Blake
 			// hex!("741fcb660e6fa9f625fbcd993b49f6c1cc4040f5e0cc8727afdedf11fd3c464b").into(),
 			// Keccak
-			hex!("61a6c7096a51b8ac79d6a6949c786cec7364be43dc4ec40cd9d4f6d631363a54").into(),
+			hex!("166a2593d35f2d1bc87eca8cf2e320ed06759000a02aa88e51fa85b12c6f1267").into(),
 			vec![
 				BareExtrinsic {
 					signed: bob(),
@@ -312,6 +314,12 @@ mod tests {
 		runtime_io::with_externalities(&mut t, || {
 			assert_eq!(Staking::voting_balance(&alice()), 41);
 			assert_eq!(Staking::voting_balance(&bob()), 69);
+			assert_eq!(System::events(), vec![
+				EventRecord {
+					phase: Phase::ApplyExtrinsic(0),
+					event: Event::staking(staking::RawEvent::NewAccount(bob(), 1, staking::NewAccountOutcome::NoHint))
+				}
+			]);
 		});
 
 		executor().call(&mut t, COMPACT_CODE, "execute_block", &block2().0, true).0.unwrap();
@@ -319,6 +327,16 @@ mod tests {
 		runtime_io::with_externalities(&mut t, || {
 			assert_eq!(Staking::voting_balance(&alice()), 30);
 			assert_eq!(Staking::voting_balance(&bob()), 78);
+			assert_eq!(System::events(), vec![
+				EventRecord {
+					phase: Phase::Finalization,
+					event: Event::session(session::RawEvent::NewSession(1))
+				},
+				EventRecord {
+					phase: Phase::Finalization,
+					event: Event::staking(staking::RawEvent::Reward(0))
+				}
+			]);
 		});
 	}
 
diff --git a/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm b/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm
index bd77b651e98dc..e9af2103e67a1 100644
Binary files a/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm and b/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm differ
diff --git a/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm b/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm
index 1ac07fcc16919..c1406dfbf5ca9 100755
Binary files a/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm and b/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm differ
diff --git a/substrate/runtime/system/src/lib.rs b/substrate/runtime/system/src/lib.rs
index f31a8d2d49655..8316dd07a9e87 100644
--- a/substrate/runtime/system/src/lib.rs
+++ b/substrate/runtime/system/src/lib.rs
@@ -86,7 +86,7 @@ decl_module! {
 
 /// A phase of a block's execution.
 #[derive(Encode, Decode)]
-#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "std", derive(Serialize, PartialEq, Eq, Clone, Debug))]
 pub enum Phase {
 	/// Applying an extrinsic.
 	ApplyExtrinsic(u32),
@@ -96,11 +96,12 @@ pub enum Phase {
 
 /// Record of an event happening.
 #[derive(Encode, Decode)]
+#[cfg_attr(feature = "std", derive(Serialize, PartialEq, Eq, Clone, Debug))]
 pub struct EventRecord<E: Parameter + Member> {
 	/// The phase of the block it happened in.
-	phase: Phase,
+	pub phase: Phase,
 	/// The event itself.
-	event: E,
+	pub event: E,
 }
 
 decl_storage! {
diff --git a/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm b/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm
index 775da20af0a50..1a8c9e9dce982 100644
Binary files a/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm and b/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm differ
diff --git a/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm b/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm
index f4f3e207b1324..743bc4bde76bb 100755
Binary files a/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm and b/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm differ