diff --git a/Cargo.lock b/Cargo.lock
index 4ceeb6c..752a68d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -32,6 +32,12 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+
 [[package]]
 name = "chrono"
 version = "0.4.11"
@@ -58,6 +64,17 @@ dependencies = [
  "vec_map",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.8"
@@ -92,6 +109,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.9"
@@ -110,6 +133,47 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
+dependencies = [
+ "getrandom",
+ "libc",
+ "rand_chacha",
+ "rand_core",
+ "rand_hc",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "rand_hc"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
+dependencies = [
+ "rand_core",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.1.56"
@@ -188,6 +252,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "toml",
+ "uuid",
 ]
 
 [[package]]
@@ -202,12 +267,27 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
+[[package]]
+name = "uuid"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fde2f6a4bea1d6e007c4ad38c6839fa71cbb63b6dbf5b595aa38dc9b1093c11"
+dependencies = [
+ "rand",
+]
+
 [[package]]
 name = "vec_map"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+
 [[package]]
 name = "winapi"
 version = "0.3.8"
diff --git a/Cargo.toml b/Cargo.toml
index 10479dd..3cd3d9f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,3 +11,4 @@ clap = "2.33.0"
 serde = "*"
 serde_derive = "*"
 toml = "0.5"
+uuid = { version = "0.8", features = ["v4"] }
diff --git a/README.md b/README.md
index a31f476..f930916 100644
--- a/README.md
+++ b/README.md
@@ -20,11 +20,12 @@ tell you that you have 15 days up to it.
 
 ## TODO
 
-- [ ] Add unique identifier for each event
+- [x] Add unique identifier for each event
 - [ ] Removing events
 - [ ] Replace `dbg!` with [env_logger](https://crates.io/crates/env_logger)
 	(reasoning: Although `dbg!` is nice and dandy, it can't be disabled, and
 	that's bad UI)
+- [ ] Remove `unwrap()`s (for example, in the argument parsing).
 
 ## License
 
diff --git a/src/eventlist/event.rs b/src/eventlist/event.rs
index 3a0d510..1d1f736 100644
--- a/src/eventlist/event.rs
+++ b/src/eventlist/event.rs
@@ -19,6 +19,7 @@
 use chrono::prelude::*;
 use serde_derive::Deserialize;
 use serde_derive::Serialize;
+use uuid::Uuid;
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Date {
@@ -42,6 +43,7 @@ pub enum EventDateType {
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Event {
+    id: String,
     description: String,
     due: EventDateType,
 }
@@ -50,7 +52,9 @@ impl Event {
     pub fn new_on_date(description: &str, date: &str) -> Self {
         let fake_datetime = format!("{} 00:00:00", date);
         if let Ok(dt) = Utc.datetime_from_str(&fake_datetime, "%Y-%m-%d %H:%M:%S") {
+            let (id, _, _, _) = Uuid::new_v4().as_fields();
             Self {
+                id: format!("{:x}", id),
                 description: description.into(),
                 due: EventDateType::AllDay(Date {
                     year: dt.year(),